Soccer Football - Champions League - Group Stage - Group D - Galatasaray v FC Porto - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - December 11, 2018 Galatasaray's Eren Derdiyok celebrates scoring their second goal with Henry Onyekuru REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v FC Porto - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - December 11, 2018 Galatasaray's Eren Derdiyok celebrates scoring their second goal with Henry Onyekuru as FC Porto's Iker Casillas and team mates look dejected REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Schalke 04 - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - October 24, 2018 Schalke's Salif Sane in action with Galatasaray's Eren Derdiyok REUTERS/Osman Orsal

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok (not pictured) scores their second goal past Lokomotiv Moscow's Guilherme REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Lokomotiv Moscow's Guilherme dives as Galatasaray's Eren Derdiyok (not pictured) scores their second goal from a free kick REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok celebrates scoring their second goal REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok celebrates scoring their second goal REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok celebrates scoring their second goal REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok celebrates scoring their second goal REUTERS/Murad Sezer

Soccer Football - Champions League - Group Stage - Group D - Galatasaray v Lokomotiv Moscow - Ali Sami Yen Spor Kompleksi, Istanbul, Turkey - September 18, 2018 Galatasaray's Eren Derdiyok in action with Lokomotiv Moscow's Igor Denisov REUTERS/Murad Sezer

Soccer Football - 2018 World Cup Qualifications - Europe - Switzerland vs Hungary - St. Jakob-Park, Basel, Switzerland - October 7, 2017 Switzerland’s Eren Derdiyok and Xherdan Shaqiri celebrate after the match REUTERS/Arnd Wiegmann

Football Soccer - Switzerland v Faroe Islands - World Cup 2018 Qualifier - Swissporarena, Luzern, Switzerland - 13/11/16 . Switzerland's Eren Derdiyok reacts after scoring a goal REUTERS/Ruben Sprich

Football Soccer - Switzerland v Faroe Islands - World Cup 2018 Qualifier - Swissporarena, Luzern, Switzerland - 13/11/16 . Switzerland's Eren Derdiyok reacts after scoring a goal REUTERS/Ruben Sprich

Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Lille, France - 25/6/16 Poland's Lukasz Fabianski dives to gather from Switzerland's Eren Derdiyok. REUTERS/Kai Pfaffenbach

Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok reacts after a missed chance
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok reacts after a missed chance
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Poland's Lukasz Fabianski gathers from Switzerland's Eren Derdiyok
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok attempts to shoot at goal as Poland's Michal Pazdan challenges
REUTERS/Jason Cairnduff
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok reacts after a missed chance
REUTERS/Yves Herman
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Poland's Michal Pazdan is helped up by Switzerland's Eren Derdiyok
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok in action with Poland's Lukasz Fabianski
REUTERS/Max Rossi
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Poland's Lukasz Fabianski gathers from Switzerland's Eren Derdiyok
REUTERS/Yves Herman
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok shoots at goal as Poland's Lukasz Fabianski attempts to save
REUTERS/Max Rossi
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok shoots at goal as Poland's Lukasz Fabianski looks on
REUTERS/Max Rossi
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok prepares to take a free kick as team mates look on
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Poland's Lukasz Fabianski saves from Switzerland's Eren Derdiyok
REUTERS/Yves Herman
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok heads at goal
REUTERS/Yves Herman
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Poland's Lukasz Fabianski saves from Switzerland's Eren Derdiyok
REUTERS/Yves Herman
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland head coach Vladimir Petkovic speaks with Eren Derdiyok and Valon Behrami at half time of extra time
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok in action with Poland's Michal Pazdan
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Granit Xhaka and Eren Derdiyok before extra time
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland head coach Vladimir Petkovic speak with Eren Derdiyok before extra time
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Poland's Lukasz Fabianski and Kamil Glik in action with Switzerland's Haris Seferovic (2nd L) and Eren Derdiyok
REUTERS/Jason Cairnduff
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok is checked on by referee Mark Clattenburg after sustaining an injury
REUTERS/Kai Pfaffenbach
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Football Soccer - Switzerland v Poland - EURO 2016 - Round of 16 - Stade Geoffroy-Guichard, Saint-?tienne, France - 25/6/16
Switzerland's Eren Derdiyok is fouled by Poland's Krzysztof Maczynski as Michal Pazdan reacts
REUTERS/Kai Pfaffenbach
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Football Soccer - Euro 2016 - Switzerland Training - Stade de la Mosson, Montpellier, France - 9/6/16 - Switzerland's Eren Derdiyok and Ricardo Rodriguez during training. REUTERS/Yves Herman

Football Soccer - Euro 2016 - Switzerland Training - Stade de la Mosson - Montpellier 7/6/2016 - Switzerland's Granit Xhaka and Eren Derdiyok during training. REUTERS/Yves Herman

Football Soccer - Euro 2016 - Switzerland Training - Stade de la Mosson - Montpellier 7/6/2016 - Switzerland's Granit Xhaka and Eren Derdiyok during training. REUTERS/Yves Herman

Switzerland's Eren Derdiyok (C) kicks the ball between Estonia's Enar Jaeaeger (L) and Taijo Teniste during their Euro 2016 qualification soccer match at the A. Le Coq arena in Tallinn, Estonia, October 12, 2015. REUTERS/Ints Kalnins

Switzerland's Eren Derdiyok (r) fights for the ball with to EEstonia's Ken Kallaste during their Euro 2016 qualification soccer match at the A. Le Coq arena in Tallinn, Estonia, October 12, 2015. REUTERS/Ints Kalnins

Switzerland's Eren Derdiyok (R) reacts after a missed opportunity next to Estonia's Enar Jaeaeger during their Euro 2016 qualification soccer match at the A. Le Coq arena in Tallinn, Estonia, October 12, 2015. REUTERS/Ints Kalnins

Switzerland's Eren Derdiyok (R) fights for the ball with Estonia's Ragnar Klavan during their Euro 2016 qualification soccer match at the A. Le Coq arena in Tallinn, Estonia, October 12, 2015. REUTERS/Ints Kalnins

Switzerland's Eren Derdiyok (R) fights for the ball with Estonia's Enar Jaeaeger during their Euro 2016 qualification soccer match at the A. Le Coq arena in Tallinn, Estonia, October 12, 2015. REUTERS/Ints Kalnins

Switzerland's Eren Derdiyok (C) celebrates his goal against San Marino's during their Euro 2016 Group E qualifying soccer match in St. Gallen, Switzerland October 9, 2015. REUTERS/Arnd Wiegmann

Paris St Germain's Javier Pastore (R) runs ahead of Eren Derdiyok of Bayer Leverkusen during their Champions League round of 16 second leg soccer match at the Parc des Princes Stadium in Paris, March 12, 2014. REUTERS/Charles Platiau (FRANCE - Tags: SPORT SOCCER)

Paris St Germain's Marquinhos (L) challenges Bayer Leverkusen's Eren Derdiyok during their Champions League round of 16 second leg soccer match at the Parc des Princes Stadium in Paris, March 12, 2014. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT SOCCER)

Bayer Leverkusen's Sidney Sam (C) scores as Paris St Germain's Christophe Jallet (L) and Bayer Leverkusen's Eren Derdiyok (R) look on during their Champions League round of 16 second leg soccer match at the Parc des Princes Stadium in Paris, March 12, 2014. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT SOCCER)

Slovenia's goalkeeper Samir Handanovic makes a save in front of Switzerland's Eren Derdiyok (R) during their 2014 World Cup Group E qualifying soccer match at the Stade de Suisse in Bern October 15, 2013. REUTERS/Ruben Sprich (SWITZERLAND - Tags: SPORT SOCCER)

Tunisia's goalkeeper Aymen Matalouthi makes a save against Switzerland's Eren Derdiyok (C) during their international friendly soccer match in Sousse November 14, 2012. REUTERS/Zoubeir Souissi (TUNISIA - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok reacts after their 2014 World Cup qualifying soccer match against Norway in Berne October 12, 2012. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok (L) congratulates team mate Mario Gavranovic after their 2014 World Cup qualifying soccer match against Norway in Berne October 12, 2012. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok fights for the ball with Norway's Brede Hangeland (L) during their 2014 World Cup qualifying soccer match in Bern October 12, 2012. REUTERS/Denis Balibouse (SWITZERLAND - Tags: SPORT SOCCER)

Eren Derdiyok of Switzerland (L) heads the ball next to Marko Suler of Slovenia during their World Cup 2014 qualifying soccer match in Ljubljana, September 7, 2012. REUTERS/Srdjan Zivulovic (SLOVENIA - Tags: SPORT SOCCER)

Eren Derdiyok (R) of Switzerland congratulates team mate Granit Xhaka after scoring his goal during their World Cup 2014 qualifying soccer match against Slovenia in Ljubljana, September 7, 2012. REUTERS/Srdjan Zivulovic (SLOVENIA - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok (C), Innocent Emeghara (R) and Gokhan Inler react after loosing their international friendly soccer match against Romania in Lucerne, May 30, 2012. REUTERS/Michael Buholzer (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok (R) reacts after losing their international friendly soccer match against Romania in Lucerne, May 30, 2012. REUTERS/Michael Buholzer (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Adrian Winter (bottom) attempts to score next to team mate Eren Derdiyok (2nd R) and past Romania's Vlad Iulian Chiriches, Marius Valerica Gaman and Costin Lazar (L-R) during their international friendly soccer match in Lucerne, May 30, 2012. REUTERS/Michael Buholzer (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok (3R) challenges Romania's Paul Papp (2R) during their international friendly soccer match in Lucerne, May 30, 2012. REUTERS/Michael Buholzer (SWITZERLAND - Tags: SPORT SOCCER)

Switzerland's Eren Derdiyok celebrates after scoring during their friendly soccer match against Germany in Basel May 26, 2012. REUTERS/Arnd Wiegmann (SWITZERLAND - Tags: SPORT SOCCER)