Soccer Football - Champions League - Sporting CP vs Olympiacos - Estadio Jose Alvalade, Lisbon, Portugal - November 22, 2017 Olympiacos' Guillaume Gillet after the match REUTERS/Pedro Nunes 

Soccer Football - Champions League - Sporting CP vs Olympiacos - Estadio Jose Alvalade, Lisbon, Portugal - November 22, 2017 Olympiacos' Guillaume Gillet after the match REUTERS/Pedro Nunes 

Soccer Football - Champions League - Sporting CP vs Olympiacos - Estadio Jose Alvalade, Lisbon, Portugal - November 22, 2017 Olympiacos' Guillaume Gillet and Alberto Botia are thanked by Olympiacos coach Takis Lemonis REUTERS/Pedro Nunes 

Soccer Football - Champions League - Sporting CP vs Olympiacos - Estadio Jose Alvalade, Lisbon, Portugal - November 22, 2017 Olympiacos' Guillaume Gillet and Alberto Botia are thanked by Olympiacos coach Takis Lemonis REUTERS/Pedro Nunes 

Soccer Football - Champions League - Sporting CP vs Olympiacos - Estadio Jose Alvalade, Lisbon, Portugal - November 22, 2017 Olympiacos' Guillaume Gillet and Alberto Botia after the match REUTERS/Pedro Nunes 

Soccer Football - Champions League - Sporting CP vs Olympiacos - Estadio Jose Alvalade, Lisbon, Portugal - November 22, 2017 Olympiacos' Guillaume Gillet reacts REUTERS/Pedro Nunes 

Soccer Football - Champions League - Olympiacos vs FC Barcelona - Karaiskakis Stadium, Piraeus, Greece - October 31, 2017 Olympiacos' Guillaume Gillet, Kostas Fortounis and Alaixys Romao applaud fans after the match REUTERS/Alkis Konstantinidis 

Soccer Football - Champions League - Olympiacos vs FC Barcelona - Karaiskakis Stadium, Piraeus, Greece - October 31, 2017 Olympiacos' Guillaume Gillet and Kostas Fortounis applaud fans after the match REUTERS/Alkis Konstantinidis 

Soccer Football - Champions League - Olympiacos vs Sporting CP - Karaiskakis Stadium, Piraeus, Greece - September 12, 2017 Sporting’s Cristiano Piccini in action with Olympiakos' Guillaume Gillet REUTERS/Alkis Konstantinidis 

Soccer Football - Champions League Playoffs - HNK Rijeka v Olympiacos -Rijeka, Croatia - August 22, 2017 Olympiakos' Guillaume Gillet in action with HNK Rijeka’s Mate Males REUTERS/Antonio Bronic 

Football Soccer - FC Nantes v OGC Nice - France Ligue 1 - La Beaujoire Stadium, Nantes, France - 18/03/2017 - Nice's Mario Balotelli in action with Nantes' Guillaume Gillet. REUTERS/Stephane Mahe 

Football Soccer - FC Nantes v OGC Nice - France Ligue 1 - La Beaujoire Stadium, Nantes, France - 18/03/2017 - Nice's Mario Balotelli in action with Nantes' Diego Carlos and Guillaume Gillet. REUTERS/Stephane Mahe 

Football Soccer - FC Nantes v OGC Nice - France Ligue 1 - La Beaujoire Stadium, Nantes, France - 18/03/2017 - Nantes' Guillaume Gillet in action with Nice's Arnaud Souquet. REUTERS/Stephane Mahe 

Football Soccer - Monaco v Nantes - French Ligue 1 - Louis II Stadium, Monaco - 5/03/2017 - Monaco's Kylian Mbappe in action with Nantes' Guillaume Gillet. REUTERS/Eric Gaillard 

Football Soccer - FC Nantes v Paris St Germain French Ligue 1 - La Beaujoire stadium in Nantes, France - 21/1/17. FC Nantes Guillaume Gillet in action with Paris Saint-Germain's Blaise Matuidi. REUTERS/Regis Duvignau 

Football Soccer - FC Nantes v Paris St Germain French Ligue 1 - La Beaujoire stadium in Nantes, France - 21/1/17. Paris Saint-Germain's Julian Draxler in action with FC Nantes' Guillaume Gillet. REUTERS/Regis Duvignau 

Football Soccer - Nice v Nantes French Ligue 1 - Allianz Riviera Stadium, Nice, France - 30/10/16. Nice's Mario Balotelli (C) is surrounded by Nantes' Adrien Thomasson (2ndR), Guillaume Gillet (L) and Diego Carlos. REUTERS/Jean-Pierre Amet 

Football Soccer - Portugal v Belgium - International friendly match -Magalhaes Pessoa stadium, Leiria, Portugal - 29/03/16. Belgium's Guillaume Gillet. REUTERS/Rafael Marchante 

Football - Tottenham Hotspur v RSC Anderlecht - UEFA Europa League Group Stage - Group J - White Hart Lane, London, England - 15/16 - 5/11/15
Anderlecht's Guillaume Gillet
Action Images via Reuters / Matthew Childs

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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Tottenham's Christian Eriksen in action with Anderlecht's Guillaume Gillet and Olivier Deschacht
Action Images via Reuters / Matthew Childs
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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Anderlecht's Guillaume Gillet in action with Tottenham's Ben Davies
Reuters / Francois Lenoir
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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Tottenham's Clinton N'Jie in action with Anderlecht's Yoeri Tielemans and Guillaume Gillet
Action Images via Reuters / Matthew Childs
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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Guillaume Gillet celebrates scoring the first goal for Anderlecht
Reuters / Francois Lenoir
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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Silvio Proto celebrates after Guillaume Gillet (not pictured) scores the first goal for Anderlecht
Action Images via Reuters / Matthew Childs
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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Guillaume Gillet celebrates scoring the first goal for Anderlecht
Reuters / Francois Lenoir
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Football - RSC Anderlecht v Tottenham Hotspur - UEFA Europa League Group Stage - Group J - Constant Vanden Stock Stadium, Brussells, Belgium - 22/10/15
Guillaume Gillet celebrates scoring the first goal for Anderlecht
Reuters / Francois Lenoir
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Guillaume Gillet (top) of Anderlecht jumps on Fabinho of Monaco during their Europa League soccer match at the Constant Vanden Stock stadium in Brussels, Belgium September 17, 2015. REUTERS/Francois Lenoir 

Fabinho of Monaco (L) struggles with Guillaume Gillet of Anderlecht during a Europa League soccer match at the Constant Vanden Stock stadium in Brussels, Belgium September 17, 2015. REUTERS/Francois Lenoir 

Guillaume Gillet of Anderlecht (L) fights for the ball with Joao Moutinho of Monaco during a Europa League soccer match at the Constant Vanden Stock stadium in Brussels, Belgium September 17, 2015. REUTERS/Francois Lenoir 

Guillaume Gillet (R) of Anderlecht celebrates his goal with teammate Stefano Okaka against Monaco during a Europa League soccer match at the Constant Vanden Stock stadium in Brussels, Belgium September 17, 2015. REUTERS/Francois Lenoir 

Guillaume Gillet of Anderlecht celebrates his goal against Monaco during a Europa League soccer match at the Constant Vanden Stock stadium in Brussels, Belgium September 17, 2015. REUTERS/Francois Lenoir 

Guillaume Gillet of Anderlecht celebrates his goal against Monaco during a Europa League soccer match at the Constant Vanden Stock stadium in Brussels, Belgium September 17, 2015. REUTERS/Francois Lenoir 

Olympique Marseille's Andre Ayew (C) challenges Bastia's Guillaume Gillet and Alexander Djiku (R) during their French Ligue 1 soccer match at the Velodrome Stadium in Marseille, France, May 23, 2015. REUTERS/Philippe Laurenson 

Bastia's players (L to R) Hervin Ongenda, Julian Palmieri and Guillaume Gillet celebrate after defeating Monaco during their French League Cup soccer semi-final soccer match in Monaco February 4, 2015. REUTERS/Eric Gaillard (MONACO - Tags: SPORT SOCCER) 

Bastia's players Hervin Ongenda (L), Romaric N'Dri Koffi (C) and Guillaume Gillet (27) celebrate after defeating Monaco during their French League Cup soccer semi-final soccer match in Monaco February 4, 2015. REUTERS/Eric Gaillard (MONACO - Tags: SPORT SOCCER) 

Paris St Germain's Lucas challenges Bastia's El-Hadji Ba (C) and Guillaume Gillet (L) during their French Ligue 1 soccer match at the Parc des Princes Stadium in Paris, August 16, 2014. REUTERS/Benoit Tessier (FRANCE - Tags: SPORT SOCCER) 

Olympiakos' Joel Campbell (R) fights for the ball against Anderlecht's Guillaume Gillet (2nd R) during their Champions League soccer match at Karaiskaki stadium in Piraeus near Athens December 10, 2013. REUTERS/John Kolesidis (GREECE - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet (C) celebrates with teammate Sacha Kljestan a goal against Olympiakos during their Champions League soccer match at Karaiskaki stadium in Piraeus near Athens December 10, 2013. REUTERS/str (GREECE - Tags: SPORT SOCCER) 

Olympiakos' David Fuster (R) tackles Anderlecht's Guillaume Gillet during their Champions League Group C soccer match at Karaiskaki stadium in Piraeus near Athens December 10, 2013. REUTERS/Yorgos Karahalis (GREECE - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet (L) and goalkeeper Silvio Proto react after their Champions League group C soccer match against Benfica at the Constant Vanden Stock Stadium in Brussels November 27, 2013. REUTERS/Francois Lenoir (BELGIUM - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet (L) and goalkeeper Silvio Proto react after their Champions League group C soccer match against Benfica at the Constant Vanden Stock Stadium in Brussels November 27, 2013. REUTERS/Francois Lenoir (BELGIUM - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet (L) and Chancel Mbemba (R) react during their Champions League group C soccer match against Benfica at the Constant Vanden Stock Stadium in Brussels November 27, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER)

(LtoR) Anderlecht's Guillaume Gillet, Cheikhou Kouyate and Bram Nuytinck react during their Champions League group C soccer match against Benfica at the Constant Vanden Stock Stadium in Brussels November 27, 2013. REUTERS/Francois Lenoir (BELGIUM - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet (R) fights for the ball with Benfica's Lima (C) during their Champions League group C soccer match at the Constant Vanden Stock Stadium in Brussels November 27, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet (L) fights for the ball with Benfica's Lima (R) during their Champions League group C soccer match at the Constant Vanden Stock Stadium in Brussels November 27, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet reacts after the Champions League soccer match against Paris Saint-Germain at Constant Vanden Stock stadium in Brussels October 23, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet (L) and Cyriac (R) fight for the ball with Paris Saint-Germain's Zoumana Camara during their Champions League soccer match at Constant Vanden Stock stadium in Brussels October 23, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet reacts during the Champions League soccer match against Paris Saint-Germain at Constant Vanden Stock stadium in Brussels October 23, 2013. REUTERS/Francois Lenoir (BELGIUM - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet (R) kicks the ball near Paris Saint-Germain's Maxwell during their Champions League soccer match at Constant Vanden Stock stadium in Brussels October 23, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet reacts during the Champions League soccer match against Paris Saint-Germain at Constant Vanden Stock stadium in Brussels October 23, 2013. REUTERS/Francois Lenoir (BELGIUM - Tags: SPORT SOCCER) 

Anderlecht's Cheikhou Kouyate (L) and Guillaume Gillet react during a Champions League soccer match against Olympiakos at Constant Vanden Stock stadium in Brussels October 2, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER)

Benfica's Ljubomir Fejsa (L) and Anderlecht's Guillaume Gillet (R) fight for the ball during their Champions League soccer match at the Luz Stadium in Lisbon September 17, 2013. REUTERS/Hugo Correia (PORTUGAL - Tags: SPORT SOCCER)

Benfica's goalkeeper Artur (L) is challenged by Anderlecht's Guillaume Gillet as he goes for the ball during their Champions League soccer match at the Luz Stadium in Lisbon September 17, 2013. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags: SPORT SOCCER)

Benfica's Ljubomir Fejsa (L) and Anderlecht's Guillaume Gillet (R) fight for a high ball during their Champions League soccer match at the Luz Stadium in Lisbon September 17, 2013. REUTERS/Jose Manuel Ribeiro (PORTUGAL - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet (L) and Benfica's Ezequiel Garay (R) challenge for the ball during their Champions League soccer match at the Luz Stadium in Lisbon September 17, 2013. REUTERS/Hugo Correia (PORTUGAL - Tags: SPORT SOCCER)

Anderlecht's Guillaume Gillet attends a news conference before a training session at the Luz stadium in Lisbon September 16, 2013. Anderlecht is set to play against Portuguese side Benfica in their Champions League soccer match on Tuesday. REUTERS/Hugo Correia (PORTUGAL - Tags: SPORT SOCCER) 

Anderlecht coach John van den Brom (R) smiles at player Guillaume Gillet during a news conference before a training session at the Luz stadium in Lisbon September 16, 2013. Anderlecht is set to play against Portuguese side Benfica in their Champions League soccer match on Tuesday. REUTERS/Hugo Correia (PORTUGAL - Tags: SPORT SOCCER) 

Anderlecht's Guillaume Gillet attends a news conference before a training session at the Luz stadium in Lisbon September 16, 2013. Anderlecht is set to play against Portuguese side Benfica in their Champions League soccer match on Tuesday. REUTERS/Hugo Correia (PORTUGAL - Tags: SPORT SOCCER) 

Belgium's Laurent Ciman (L), Sebastien Pocognoli (2nd L), Guillaume Gillet and Axel Witsel (R) fight for the ball during a training session at the King Baudouin stadium in Brussels August 13, 2013. Belgium will play against France in a friendly soccer match on Wednesday. REUTERS/Laurent Dubrule (BELGIUM - Tags: SPORT SOCCER) 

Malaga's Eliseu fights for the ball against Anderlecht's Guillaume Gillet during their Champions League Group C soccer match at La Rosaleda stadium in Malaga, southern Spain December 4, 2012. REUTERS/Jon Nazca (SPAIN - Tags: SPORT SOCCER)