1997–98 Galatasaray S.K. season
Galatasaray 1997–98 football season
1997–98 season | |||
---|---|---|---|
President | Faruk Süren | ||
Head coach | Fatih Terim | ||
Stadium | Ali Sami Yen Stadı | ||
1. Lig | 1st | ||
Turkish Cup | Runners-up | ||
UEFA Champions League | Group stage | ||
Turkish Super Cup | Runners-up | ||
Top goalscorer | League: Hakan Şükür (32) All: Hakan Şükür (34) | ||
Highest home attendance | 30,482 vs İstanbulspor (1. Lig, 3 May 1998) | ||
Lowest home attendance | 14,000 vs Parma (CL, 10 December 1997) | ||
Average home league attendance | 26,330 | ||
| |||
The 1997–98 season was Galatasaray's 94th in existence and its 40th consecutive season in the 1. Lig. This article shows statistics of the club's players in the season, and also lists all matches that the club have played in the season.
Squad statistics
No. | Pos. | Name | 1. Lig | Türkiye Kupası | CL | Süper Kupa | Total | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |||
- | GK | ![]() | 20 | 0 | 2 | 0 | 8 | 0 | 0 | 0 | 30 | 0 |
- | GK | ![]() | 15 | 0 | 6 | 0 | 0 | 0 | 1 | 0 | 22 | 0 |
- | GK | ![]() | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
- | DF | ![]() | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 |
- | DF | ![]() | 5 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 9 | 0 |
- | DF | ![]() | 24 | 1 | 5 | 0 | 5 | 0 | 0 | 0 | 34 | 1 |
4 | DF | ![]() | 32 | 2 | 8 | 2 | 8 | 0 | 0 | 0 | 48 | 4 |
3 | DF | ![]() | 29 | 1 | 7 | 0 | 8 | 0 | 0 | 0 | 44 | 1 |
- | DF | ![]() | 31 | 5 | 8 | 0 | 8 | 1 | 1 | 0 | 48 | 6 |
- | DF | ![]() | 8 | 0 | 1 | 0 | 3 | 0 | 1 | 0 | 13 | 0 |
11 | DF | ![]() | 27 | 3 | 5 | 0 | 5 | 0 | 1 | 0 | 38 | 3 |
67 | MF | ![]() | 27 | 1 | 5 | 0 | 8 | 1 | 1 | 0 | 41 | 2 |
7 | MF | ![]() | 24 | 5 | 8 | 1 | 2 | 0 | 1 | 0 | 35 | 6 |
- | MF | ![]() | 11 | 1 | 2 | 1 | 1 | 0 | 1 | 1 | 15 | 3 |
- | MF | ![]() | 14 | 1 | 5 | 0 | 4 | 0 | 1 | 0 | 24 | 1 |
- | MF | ![]() | 30 | 2 | 7 | 1 | 8 | 2 | 1 | 0 | 46 | 5 |
- | MF | ![]() | 21 | 2 | 5 | 1 | 2 | 1 | 1 | 0 | 29 | 3 |
- | MF | ![]() | 23 | 2 | 8 | 0 | 2 | 0 | 1 | 0 | 34 | 2 |
22 | MF | ![]() | 15 | 3 | 3 | 0 | 6 | 0 | 0 | 0 | 24 | 3 |
10 | MF | ![]() | 30 | 8 | 6 | 0 | 6 | 0 | 0 | 0 | 42 | 8 |
- | FW | ![]() | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
6 | FW | ![]() | 33 | 9 | 7 | 2 | 8 | 1 | 1 | 0 | 49 | 12 |
- | FW | ![]() | 12 | 6 | 0 | 0 | 7 | 5 | 0 | 0 | 19 | 11 |
- | FW | ![]() | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 5 | 0 |
9 | FW | ![]() | 34 | 32 | 8 | 2 | 7 | 0 | 1 | 0 | 50 | 34 |
Players in / out
In
Pos. | Nat. | Name | Age | Moving from |
---|---|---|---|---|
DF | ![]() | Gheorghe Popescu | 30 | Barcelona |
MF | ![]() | Mehmet Gönülaçar | 25 | Gaziantepspor |
MF | ![]() | Adnan İlgin | 24 | Adıyamanspor |
MF | ![]() | Osman Coşkun | 25 | Gençlerbirliği |
MF | ![]() | Emre Belözoğlu | 17 | Galatasaray A2 |
FW | ![]() | Ionuț Luțu | 22 | Universitatea Craiova |
GK | ![]() | Mehmet Bölükbaşi | 19 | Akçaabat Sebatspor |
GK | ![]() | Richard Kingson | 19 | Galatasaray A2 |
Out
Pos. | Nat. | Name | Age | Moving to |
---|---|---|---|---|
DF | ![]() | Cihat Arslan | 27 | Gaziantepspor |
FW | ![]() | Alp Küçükvardar | 21 | Gaziantepspor |
MF | ![]() | İlyas Kahraman | 21 | Gaziantepspor |
MF | ![]() | Ceyhun Eriş | 20 | Göztepe on loan |
MF | ![]() | Ufuk Talay | 20 | Kardemir Karabükspor on loan |
DF | ![]() | Mert Korkmaz | 26 | Kocaelispor |
DF | ![]() | Bekir Gür | 25 | Çanakkale Dardanel |
FW | ![]() | Adrian Ilie | 23 | Valencia |
1. Lig
Standings
Pos | Team
| Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
---|---|---|---|---|---|---|---|---|---|---|
1 | Galatasaray (C) | 34 | 23 | 6 | 5 | 86 | 43 | +43 | 75 | Qualification to Champions League second qualifying round |
2 | Fenerbahçe | 34 | 21 | 8 | 5 | 61 | 25 | +36 | 71 | Qualification to UEFA Cup second qualifying round |
3 | Trabzonspor | 34 | 19 | 9 | 6 | 68 | 42 | +26 | 66 | |
4 | İstanbulspor | 34 | 14 | 12 | 8 | 60 | 42 | +18 | 54 | |
5 | Samsunspor | 34 | 14 | 7 | 13 | 42 | 42 | 0 | 49 | Qualification to Intertoto Cup second round |
Source: [1]
Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
(C) Champions
Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
(C) Champions
Matches
Ankaragücü v Galatasaray
1 August 1997 1 | Ankaragücü | 0–0 | Galatasaray | Ankara |
20:00 EET | Report | Stadium: Ankara 19 Mayıs Stadium Referee: İlhami Kaplan |
Galatasaray v Bursaspor
9 August 1997 2 | Galatasaray | 4–0 | Bursaspor | Istanbul |
20:00 EET | Ilie ![]() Şükür ![]() | Report | Stadium: Ali Sami Yen Stadı Attendance: ? Referee: Erol Ersoy |
Kocaelispor v Galatasaray
24 August 1997 3 | Kocaelispor | 1–1 | Galatasaray | İzmit |
19:00 EET | Dąbrowski ![]() | Report | Filipescu ![]() | Stadium: İsmet Paşa Stadium Referee: Ahmet Çakar |
Galatasaray v Vanspor
31 August 1997 4 | Galatasaray | 6–2 | Vanspor | Istanbul |
19:00 EET | Akyel ![]() Şükür ![]() Ilie ![]() Erdem ![]() | Report | Karaca ![]() | Stadium: Ali Sami Yen Stadı Attendance: 22,337 Referee: Yılnur Önen |
Fenerbahçe v Galatasaray
5 September 1997 5 | Fenerbahçe | 3–1 | Galatasaray | Istanbul |
20:00 EET | Korkut ![]() Bolić ![]() Okocha ![]() | Report | Kerimoğlu ![]() | Stadium: Şükrü Saracoğlu Stadium Attendance: 26,000 Referee: Muhittin Boşat |
Galatasaray v Antalyaspor
14 September 1997 6 | Galatasaray | 2–1 | Antalyaspor | Istanbul |
19:00 EET | Korkmaz ![]() Erdem ![]() | Report | N'Gole ![]() | Stadium: Ali Sami Yen Stadı Attendance: 23,152 Referee: Metin Tokat |
Beşiktaş v Galatasaray
21 September 1997 7 | Beşiktaş | 2–1 | Galatasaray | Istanbul |
19:00 EET | Özdilek ![]() Amokachi ![]() | Report | Şükür ![]() | Stadium: İnönü Stadium Attendance: 31,600 Referee: Mustafa Çulcu |
Galatasaray v Çamlıdere Şekerspor
27 September 1997 8 | Galatasaray | 4–1 | Çamlıdere Şekerspor | Istanbul |
19:00 EET | Popescu ![]() Akyel ![]() Hagi ![]() Buruk ![]() | Report | Moukhar ![]() | Stadium: Ali Sami Yen Stadı Attendance: ? Referee: Sadık İlhan |
Gençlerbirliği v Galatasaray
5 October 1997 9 | Gençlerbirliği | 3–2 | Galatasaray | Ankara |
19:00 EET | Sözeri ![]() Karan ![]() Geremi ![]() | Report | Şükür ![]() | Stadium: Ankara 19 Mayıs Stadium Referee: İbrahim Aksoy |
Galatasaray v Gaziantepspor
18 October 1997 10 | Galatasaray | 1–0 | Gaziantepspor | Istanbul |
19:00 EET | Hagi ![]() | Report | Stadium: Ali Sami Yen Stadı Attendance: ? Referee: Oğuz Sarvan |
Samsunspor v Galatasaray
1 November 1997 11 | Samsunspor | 0–2 | Galatasaray | Samsun |
19:00 EET | Report | Şükür ![]() Ilie ![]() | Stadium: Samsun 19 Mayıs Stadium Referee: Erol Ersoy |
Galatasaray v Trabzonspor
8 November 1997 12 | Galatasaray | 2–2 | Trabzonspor | Istanbul |
19:00 EET | Ünsal ![]() Coşkun ![]() | (Report) | Mandıralı ![]() | Stadium: Ali Sami Yen Stadı Attendance: 30,000 Referee: İlhami Kaplan |
Altay v Galatasaray
16 November 1997 13 | Altay | 4–5 | Galatasaray | İzmir |
19:00 EET | Dökme ![]() Tekke ![]() | Report | Şükür ![]() Erdem ![]() | Stadium: İzmir Atatürk Stadium Referee: Ayhan Yücebilgiç |
Galatasaray v Çanakkale Dardanelspor
23 November 1997 14 | Galatasaray | 1–0 | Çanakkale Dardanelspor | Istanbul |
19:00 EET | Hagi ![]() | (Report) | Stadium: Ali Sami Yen Stadı Attendance: 30,000 Referee: Metin Tokat |
Kayserispor v Galatasaray
6 December 1997 15 | Kayserispor | 1–2 | Galatasaray | Adana |
19:00 EET | Dağdelen ![]() | Report | Davala ![]() Şükür ![]() | Stadium: Adana 5 Ocak Stadium Referee: Murat Ilgaz |
Istanbulspor v Galatasaray
13 December 1997 16 | Istanbulspor | 2–1 | Galatasaray | Istanbul |
19:00 EET | Akyüz ![]() Hamzaoğlu ![]() | (Report) | Buruk ![]() | Stadium: İnönü Stadium Attendance: 12,563 Referee: Erol Ersoy |
Galatasaray v KDÇ Karabükspor
21 December 1997 17 | Galatasaray | 3–0 | KDÇ Karabükspor | Istanbul |
19:00 EET | Şükür ![]() | (Report) | Stadium: Ali Sami Yen Stadı Attendance: 20,000 Referee: Serdar Tatlı |
Galatasaray v Ankaragücü
18 January 1998 18 | Galatasaray | 2–1 | Ankaragücü | Istanbul |
19:00 EET | Şükür ![]() Kaya ![]() | Report | Coulibaly ![]() | Stadium: Ali Sami Yen Stadı Attendance: ? Referee: Ayhan Yücebilgiç |
Bursaspor v Galatasaray
25 January 1998 19 | Bursaspor | 3–2 | Galatasaray | Bursa |
19:00 EET | Vidolov ![]() Kolgu ![]() Baljić ![]() | (Report) | Şükür ![]() Davala ![]() | Stadium: Bursa Atatürk Stadı Referee: İlhami Kaplan |
Galatasaray v Kocaelispor
1 February 1998 20 | Galatasaray | 2–0 | Kocaelispor | Istanbul |
19:00 EET | Şükür ![]() Davala ![]() | Report | Stadium: Ali Sami Yen Stadı Attendance: 30,358 Referee: Metin Tokat |
Vanspor v Galatasaray
7 February 1998 21 | Vanspor | 0–3 | Galatasaray | Van |
12:30 EET | (Report) | Erdem ![]() Popescu ![]() | Stadium: Atatürk Stadı Referee: Ayhan Yücebilgiç |
Galatasaray v Fenerbahçe
15 February 1998 22 | Galatasaray | 2–2 | Fenerbahçe | Istanbul |
19:00 EET | Hagi ![]() Ünsal ![]() | Report | Okocha ![]() Bolić ![]() | Stadium: Ali Sami Yen Stadı Attendance: 30,000 Referee: Oğuz Sarvan |
Antalyaspor v Galatasaray
22 February 1998 23 | Antalyaspor | 1–3 | Galatasaray | Antalya |
19:00 EET | N'Gole ![]() | (Report) | Şükür ![]() Hagi ![]() | Stadium: Atatürk Stadı Referee: Sadık İlhan |
Galatasaray v Beşiktaş
1 March 1998 24 | Galatasaray | 3–2 | Beşiktaş | Istanbul |
19:00 EET | Hagi ![]() Ünsal ![]() Belözoğlu ![]() | Report | Özdilek ![]() | Stadium: Ali Sami Yen Stadı Attendance: 26,860 Referee: Erol Ersoy |
Çamlıdere Şekerspor v Galatasaray
7 March 1998 25 | Çamlıdere Şekerspor | 2–4 | Galatasaray | Ankara |
19:00 EET | Özer ![]() Aydın ![]() | Report | Kerimoğlu ![]() Akyel ![]() Şükür ![]() Belözoğlu ![]() | Stadium: Ankara 19 Mayıs Stadium Referee: Ünsal Çimen |
Galatasaray v Gençlerbirliği
15 March 1997 26 | Galatasaray | 3–1 | Gençlerbirliği | Istanbul |
19:00 EET | Şükür ![]() Erdem ![]() | Report | Özat ![]() | Stadium: Ali Sami Yen Stadı Attendance: 25,000 Referee: Kadir Tozlu |
Gaziantepspor v Galatasaray
21 March 1998 27 | Gaziantepspor | 1–1 | Galatasaray | Gaziantep |
19:00 EET | Sarman ![]() | Report | Şükür ![]() | Stadium: Kamil Ocak Stadium Referee: Murat Ilgaz |
Galatasaray v Samsunspor
29 March 1998 28 | Galatasaray | 2–1 | Samsunspor | Istanbul |
19:00 EET | Erdem ![]() Kaya ![]() | Report | Aykut ![]() | Stadium: Ali Sami Yen Stadı Attendance: ? Referee: Metin Tokat |
Trabzonspor v Galatasaray
4 April 1998 29 | Trabzonspor | 1–1 | Galatasaray | Trabzon |
19:00 EET | Mandıralı ![]() | Report | Buruk ![]() | Stadium: Hüseyin Avni Aker Stadium Referee: Oğuz Sarvan |
Galatasaray v Altay
12 April 1998 30 | Galatasaray | 6–1 | Altay | Istanbul |
19:00 EET | Hagi ![]() Şükür ![]() Arayıcı ![]() Gönülaçar ![]() | Report | Ateş ![]() | Stadium: Ali Sami Yen Stadı Attendance: ? Referee: Ali Aydın |
Çanakkale Dardanelspor v Galatasaray
18 April 1998 31 | Çanakkale Dardanelspor | 1–2 | Galatasaray | Çanakkale |
15:30 EET | Musisi ![]() | (Report) | Hagi ![]() Şükür ![]() | Stadium: 18 Mart Stadı Referee: Erol Ersoy |
Galatasaray v Kayserispor
26 April 1998 32 | Galatasaray | 5–1 | Kayserispor | Istanbul |
19:00 EET | Şükür ![]() Akyel ![]() Penbe ![]() Buruk ![]() Doğan ![]() | Report | Mkhalele ![]() | Stadium: Ali Sami Yen Stadı Attendance: 21,441 Referee: Ali Uluyol |
Galatasaray v Istanbulspor
3 May 1998 33 | Galatasaray | 4–1 | Istanbulspor | Istanbul |
16:30 EET | Buruk ![]() Şükür ![]() Erdem ![]() | Report | Özdemir ![]() | Stadium: Ali Sami Yen Stadı Attendance: 30,482 Referee: Muhittin Boşat |
KDÇ Karabükspor v Galatasaray
9 May 1998 34 | KDÇ Karabükspor | 2–3 | Galatasaray | İzmir |
19:00 EET | Repuh ![]() Haşlak ![]() | Report | Şükür ![]() Akyel ![]() Erdem ![]() | Stadium: İzmir Atatürk Stadium Attendance: 60,000 Referee: İbrahim Aksoy |
Türkiye Kupası
Kick-off listed in local time (EET)
Sixth round
Galatasaray v Vanspor
3 December 1997 1 | Galatasaray | 2–1 | Vanspor | Istanbul |
20:00 EET | Gönülaçar ![]() Şükür ![]() | (Report) | Phiri ![]() | Stadium: Ali Sami Yen Stadı Referee: Ali Uluyol |
Vanspor v Galatasaray
17 December 1997 2 | Vanspor | 0–0 | Galatasaray | Van |
12:30 EET | (Report) | Stadium: Van Atatürk Stadı Referee: Bülent Uzun |
Quarter-final
Galatasaray v Gaziantepspor
28 January 1998 1 | Galatasaray | 2–0 | Gaziantepspor | Istanbul |
21:00 EET | Kerimoğlu ![]() Popescu ![]() | (Report) | Stadium: Ali Sami Yen Stadı Referee: Ali Uluyol |
Gaziantepspor v Galatasaray
11 February 1998 2 | Gaziantepspor | 1–0 | Galatasaray | Gaziantep |
21:00 EET | Kahraman ![]() | (Report) | Stadium: Kamil Ocak Stadı Referee: İbrahim Aksoy |
Semi-final
Trabzonspor v Galatasaray
25 February 1998 1 | Trabzonspor | 0–0 | Galatasaray | Trabzon |
19:00 EET | (Report) | Stadium: Hüseyin Avni Aker Stadı Referee: Kadir Tozlu |
Galatasaray v Trabzonspor
11 March 1998 2 | Galatasaray | 4–2 | Trabzonspor | Istanbul |
14:00 EET | Popescu ![]() Erdem ![]() Şükür ![]() Kaya ![]() | (Report) | Mandıralı ![]() | Stadium: Ali Sami Yen Stadı Referee: Sadık İlhan |
Final
Beşiktaş v Galatasaray
25 March 1998 1 | Beşiktaş | 1–1 | Galatasaray | Istanbul |
20:30 EET | Sağlam ![]() | (Report) | Buruk ![]() | Stadium: İnönü Stadı Referee: Orhan Erdemir |
Galatasaray v Beşiktaş
8 April 1998 2 | Galatasaray | 1–1 | Beşiktaş | Istanbul |
19:00 EET | Erdem ![]() | (Report) | Özdilek ![]() | Stadium: Ali Sami Yen Stadı Attendance: 26,000 Referee: Erol Ersoy |
UEFA Champions League
Second qualifying round
Sion v Galatasaray
13 August 1997 1 | Sion | 1–4 | Galatasaray | Sion |
Lonfat ![]() | (Report) | Luiz de Sousa Milton ![]() Erdem ![]() Ilie ![]() Kaya ![]() | Stadium: Stade Tourbillon Referee: ![]() |
Galatasaray v Sion
27 August 1997 2 | Galatasaray | 4–1 | Sion | Istanbul |
Ilie ![]() Akyel ![]() | (Report) | Ouattara ![]() | Stadium: Ali Sami Yen Stadı Referee: ![]() |
Group stage
Pos | Team
| Pld | W | D | L | GF | GA | GD | Pts | Qualification |
---|---|---|---|---|---|---|---|---|---|---|
1 | ![]() | 6 | 5 | 0 | 1 | 14 | 3 | +11 | 15 | Advance to knockout stage |
2 | ![]() | 6 | 2 | 3 | 1 | 6 | 5 | +1 | 9 | |
3 | ![]() | 6 | 1 | 2 | 3 | 6 | 11 | −5 | 5 | |
4 | ![]() | 6 | 1 | 1 | 4 | 4 | 11 | −7 | 4 |
Source: UEFA
Galatasaray v Borussia Dortmund
17 September 1997 1 | Galatasaray | 0–1 | Borussia Dortmund | Istanbul |
21:45 EET | (Report) | Chapuisat ![]() | Stadium: Ali Sami Yen Stadı Attendance: 23,000 Referee: ![]() |
Parma v Galatasaray
1 October 1997 2 | Parma | 2–0 | Galatasaray | Parma |
21:45 EET | Sensini ![]() Crespo ![]() | (Report) | Stadium: Stadio Ennio Tardini Attendance: 5,922 Referee: ![]() |
Sparta Prague v Galatasaray
22 October 1997 3 | Sparta Prague | 3–0 | Galatasaray | Prague |
21:45 EET | Siegl ![]() Gabriel ![]() Obajdin ![]() | (Report) | Stadium: Stadion Letná Attendance: 11,100 Referee: ![]() |
Galatasaray v Sparta Prague
5 November 1997 4 | Galatasaray | 2–0 | Sparta Prague | Istanbul |
21:45 EET | Kerimoğlu ![]() | (Report) | Stadium: Ali Sami Yen Stadı Attendance: 15,000 Referee: ![]() |
Borussia Dortmund v Galatasaray
26 November 1997 5 | Borussia Dortmund | 4–1 | Galatasaray | Dortmund |
21:45 EET | But ![]() Herrlich ![]() Zorc ![]() | (Report) | Penbe ![]() | Stadium: Westfalenstadion Attendance: 45,000 Referee: ![]() |
Galatasaray v Parma
10 December 1997 6 | Galatasaray | 1–1 | Parma | Istanbul |
21:45 EET | Ilie ![]() | (Report) | Chiesa ![]() | Stadium: Ali Sami Yen Stadı Attendance: 14,000 Referee: ![]() |
Süper Kupa-Cumhurbaşkanlığı Kupası
Kick-off listed in local time (EET)
Galatasaray v Beşiktaş
15 May 1998 | Galatasaray | 1–2 | Beşiktaş | Ankara |
20:00 EET | Gönülaçar ![]() | (Report) | Amokachi ![]() Kahveci ![]() | Stadium: 19 Mayıs Stadı Attendance: 11,962 Referee: Erol Ersoy |
Friendly matches
Kick-off listed in local time (EET)
TSYD Kupası
Beşiktaş v Galatasaray
18 July 1997 1 | Beşiktaş | 0–6 | Galatasaray | Istanbul |
20:30 EET | (Report) | Ilie ![]() Kaya ![]() Ünsal ![]() | Stadium: İnönü Stadı Attendance: 7,164 Referee: Orhan Erdemir |
Galatasaray v Fenerbahçe
20 July 1997 2 | Galatasaray | 4–2 | Fenerbahçe | Istanbul |
20:00 EET | Hagi ![]() Davala ![]() Penbe ![]() Ünsal ![]() | (Report) | Bolić ![]() Sancaklı ![]() | Stadium: Ali Sami Yen Stadı Attendance: 32,615 Referee: Serdar Çakır |
Attendance
Competition | Av. Att. | Total Att. |
---|---|---|
1. Lig | 26,330 | 289,630 |
Türkiye Kupası | 26,000 | 26,000 |
Champions League | 17,333 | 52,000 |
Total | 24,509 | 367,630 |
References
- ^ "Galatasaray 2022/2023 Fikstür | Mackolik.com". www.mackolik.com.
- Tuncay, Bülent (2002). Galatasaray Tarihi. Yapı Kredi Yayınları ISBN 975-08-0454-6
External links
- Galatasaray Sports Club Official Website (in Turkish, English, and French)
- Turkish Football Federation – Galatasaray A.Ş. (in Turkish and English)
- uefa.com – Galatasaray AŞ