Soccer Football - Europa League Round of 16 Second Leg - Arsenal vs AC Milan - Emirates Stadium, London, Britain - March 15, 2018 AC Milan's Riccardo Montolivo, Nikola Kalinic, Manuel Locatelli and Leonardo Bonucci look dejected after the match Action Images via Reuters/John Sibley 

Soccer Football - Europa League Round of 16 Second Leg - Arsenal vs AC Milan - Emirates Stadium, London, Britain - March 15, 2018 Arsenal's Aaron Ramsey in action with AC Milan's Riccardo Montolivo REUTERS/David Klein 

Soccer Football - Europa League Round of 16 Second Leg - Arsenal vs AC Milan - Emirates Stadium, London, Britain - March 15, 2018 AC Milan's Riccardo Montolivo and Alessio Romagnoli remonstrate with the assistant referee after Arsenal are awarded a penalty Action Images via Reuters/John Sibley 

Soccer Football - Europa League - AC Milan Training - Milanello Sport Center, Milan, Italy - March 14, 2018 AC Milan's Riccardo Montolivo during training REUTERS/Stefano Rellandini 

Soccer Football - Europa League Round of 32 Second Leg - AC Milan vs PFC Ludogorets Razgrad - San Siro, Milan, Italy - February 22, 2018 AC Milan's Antonio Donnarumma and Riccardo Montolivo applaud the fans at the end of the match REUTERS/Tony Gentile 

Soccer Football - Europa League Round of 32 Second Leg - AC Milan vs PFC Ludogorets Razgrad - San Siro, Milan, Italy - February 22, 2018 AC Milan's Riccardo Montolivo in action with Ludogorets’ Jacek Goralski REUTERS/Tony Gentile 

Soccer Football - Serie A - Napoli vs AC Milan - Stadio San Paolo, Naples, Italy - November 18, 2017 Napoli's Elseid Hysaj in action with AC Milan's Riccardo Montolivo REUTERS/Ciro De Luca 

Soccer Football - Serie A - Napoli vs AC Milan - Stadio San Paolo, Naples, Italy - November 18, 2017 Napoli's Dries Mertens in action with AC Milan's Riccardo Montolivo REUTERS/Ciro De Luca 

Soccer Football - Europa League - AEK Athens vs AC Milan - OAKA Spiros Louis, Athens, Greece - November 2, 2017 AC Milan's Riccardo Montolivo hits the post REUTERS/Alkis Konstantinidis 

Soccer Football - Europa League - AEK Athens vs AC Milan - OAKA Spiros Louis, Athens, Greece - November 2, 2017 AC Milan's Riccardo Montolivo hits the post REUTERS/Alkis Konstantinidis 

Soccer Football - Europa League - AEK Athens vs AC Milan - OAKA Spiros Louis, Athens, Greece - November 2, 2017 AC Milan's Riccardo Montolivo in action with AEK Athens' Andre Simoes REUTERS/Costas Baltas 

Soccer Football - Europa League - AEK Athens vs AC Milan - OAKA Spiros Louis, Athens, Greece - November 2, 2017 AEK Athens' Andre Simoes in action with AC Milan's Riccardo Montolivo REUTERS/Alkis Konstantinidis 

Soccer Football - Europa League - AEK Athens vs AC Milan - OAKA Spiros Louis, Athens, Greece - November 2, 2017 AC Milan's Riccardo Montolivo in action with AEK Athens' Anastasios Bakasetas REUTERS/Alkis Konstantinidis 

Soccer Football - Europa League - AEK Athens vs AC Milan - OAKA Spiros Louis, Athens, Greece - November 2, 2017 AC Milan's Riccardo Montolivo REUTERS/Costas Baltas 

Soccer Football - Serie A - Lazio vs AC Milan - Rome, Italy - September 10, 2017 AC Milan's Riccardo Montolivo in action with Lazio’s Senad Lulic REUTERS/Alberto Lingria 

Soccer Football - Serie A - Lazio vs AC Milan - Rome, Italy - September 10, 2017 AC Milan's Riccardo Montolivo scores their first goal REUTERS/Alberto Lingria 

Soccer Football - Serie A - AC Milan vs Cagliari Calcio - Milan, Italy - August 27, 2017 AC Milan's Riccardo Montolivo in action with Cagliari's Marco Sau REUTERS/Alberto Lingria 

Soccer Football - Europa League - Playoffs - AC Milan vs KF Shkendija - Milan, Italy - August 17, 2017 AC Milan's Riccardo Montolivo celebrates scoring their sixth goal with Leonardo Bonucci and team mates REUTERS/Stefano Rellandini 

Soccer Football - Europa League - Playoffs - AC Milan vs KF Shkendija - Milan, Italy - August 17, 2017 AC Milan's Riccardo Montolivo celebrates scoring their sixth goal with Leonardo Bonucci and team mates REUTERS/Stefano Rellandini 

Soccer Football - Europa League - Playoffs - AC Milan vs KF Shkendija - Milan, Italy - August 17, 2017 AC Milan's Andre Silva celebrates scoring their third goal with Riccardo Montolivo REUTERS/Stefano Rellandini 

Soccer Football - Europa League - Playoffs - AC Milan vs KF Shkendija - Milan, Italy - August 17, 2017 AC Milan's Riccardo Montolivo celebrates scoring their second goal with Andre Silva REUTERS/Stefano Rellandini 

Football Soccer - AC Milan v Lazio - Italian Serie A - San Siro stadium, Milan, Italy - 20/9/16. AC Milan's Carlos Bacca celebrates with teammate Riccardo Montolivo after scoring against Lazio. REUTERS/Max Rossi 

Football Soccer - AC Milan v Udinese - Italian Serie A - San Siro stadium, Milan, Italy - 11/09/16 AC Milan's Riccardo Montolivo in action against Udinese. REUTERS/Stefano Rellandini 

Football Soccer - Juventus v Milan - Italian Cup Final - Olympic stadium, Rome, Italy - 21/05/16 Juventus' Paulo Dybala in action against AC Milan's Riccardo Montolivo. REUTERS/Alessandro Bianchi
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Football Soccer - Juventus v Milan - Italian Cup Final - Olympic stadium, Rome, Italy - 21/05/16 Juventus' Paulo Dybala in action against AC Milan's Riccardo Montolivo. REUTERS/Tony Gentile
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Football Soccer - Juventus v Milan - Italian Cup Final - Olympic stadium, Rome, Italy - 21/05/16 Juventus' Giorgio Chiellini in action against AC Milan's Riccardo Montolivo. REUTERS/Tony Gentile
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Football Soccer - Juventus v Milan - Italian Cup Final - Olympic stadium, Rome, Italy - 21/05/16 Juventus' Paulo Dybala in action against AC Milan's Riccardo Montolivo. REUTERS/Alessandro Bianchi

Football Soccer - Juventus v Milan - Italian Cup Final - Olympic stadium, Rome, Italy - 21/05/16 Juventus' Giorgio Chiellini in action against AC Milan's Riccardo Montolivo. REUTERS/Tony Gentile

Football Soccer - Juventus v Milan - Italian Cup Final - Olympic stadium, Rome, Italy - 21/05/16 Juventus' Paulo Dybala in action against AC Milan's Riccardo Montolivo. REUTERS/Tony Gentile 

Football Soccer - AC Milan v Juventus - San Siro stadium, Milan, Italy- 9/04/16 - AC Milan's Riccardo Montolivo (R) in action against Leonardo Bonucci of Juventus. REUTERS/Alessandro Garofalo 

Football Soccer - Germany v Italy - International Friendly - Allianz-Arena, Munich, Germany - 29/3/16. Italy's Riccardo Montolivo in action. REUTERS/Michaela Rehle 

Football Soccer - Germany v Italy - International Friendly - Allianz-Arena, Munich, Germany - 29/3/16. Italy's Riccardo Montolivo in action. REUTERS/Michaela Rehle 

Football Soccer - Germany v Italy - International Friendly - Allianz-Arena, Munich, Germany - 29/3/16. Italy's Riccardo Montolivo before the match. REUTERS/Michaela Rehle 

Football Soccer - Napoli v AC Milan - Italian Serie A - San Paolo Stadium, Naples, Italy - 22/02/16 Napoli's Allan (R) in action against Riccardo Montolivo of AC Milan. REUTERS/Tony Gentile
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Football Soccer - Napoli v AC Milan - Italian Serie A - San Paolo Stadium, Naples, Italy - 22/02/16 Napoli's Marek Hamsik (L) in action against Riccardo Montolivo of AC Milan. REUTERS/Tony Gentile
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Football Soccer - Napoli v AC Milan - Italian Serie A - San Paolo Stadium, Naples, Italy - 22/02/16 Napoli's Marek Hamsik (L) in action against Riccardo Montolivo of AC Milan. REUTERS/Tony Gentile
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Football Soccer - Napoli v AC Milan - Italian Serie A - San Paolo Stadium, Naples, Italy - 22/02/16 Napoli's Marek Hamsik (L) in action against Riccardo Montolivo of AC Milan. REUTERS/Tony Gentile

Football Soccer - Napoli v AC Milan - Italian Serie A - San Paolo Stadium, Naples, Italy - 22/02/16 Napoli's Marek Hamsik (L) in action against Riccardo Montolivo of AC Milan. REUTERS/Tony Gentile

Football Soccer - Napoli v AC Milan - Italian Serie A - San Paolo Stadium, Naples, Italy - 22/02/16 Napoli's Allan (R) in action against Riccardo Montolivo of AC Milan. REUTERS/Tony Gentile

Football Soccer - AC Milan v Bologna - Italian Serie A - San Siro stadium, Milan, Italy - 06/01/16. AC Milan's Riccardo Montolivo reacts. REUTERS/Stefano Rellandini
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Football Soccer - AC Milan v Bologna - Italian Serie A - San Siro stadium, Milan, Italy - 06/01/16. AC Milan's Riccardo Montolivo reacts. REUTERS/Stefano Rellandini 

Football Soccer - Frosinone v AC Milan - Italian Serie A - Matusa stadium, Frosinone, Italy 20/12/15AC Milan's Riccardo Montolivo celebrates after defeating FrosinoneREUTERS/Giampiero Sposito 

Football Soccer - Frosinone v AC Milan - Italian Serie A - Matusa stadium, Frosinone, Italy 20/12/15AC Milan's Ignazio Abbate celebrates with teammate Riccardo Montolivo after scoring a goal against FrosinoneREUTERS/Giampiero Sposito 

Football Soccer - Frosinone v AC Milan - Italian Serie A - Matusa stadium, Frosinone, Italy 20/12/15AC Milan's Riccardo Montolivo in action against Daniel Pavlovic of FrosinoneREUTERS/Giampiero Sposito 

Football Soccer - Frosinone v AC Milan - Italian Serie A - Matusa stadium, Frosinone, Italy 20/12/15AC Milan's Riccardo Montolivo during the matchREUTERS/Giampiero Sposito 

Football Soccer - Juventus v AC Milan - Juventus stadium, Turin, Italy- 21/11/15Riccardo Montolivo of AC Milan in action during the match against Juventus REUTERS/Giorgio Perottino 

Football Soccer - Juventus v AC Milan - Juventus stadium, Turin, Italy- 21/11/15Juventus' Hernanes (R) in action against Riccardo Montolivo of AC Milan REUTERS/Giorgio Perottino 

AC Milan's Riccardo Montolivo (L) is challenged by Atalanta's Alberto Grassi during their Serie A soccer match at the San Siro stadium in Milan, Italy, November 7, 2015. REUTERS/Giampiero Sposito 

AC Milan's Riccardo Montolivo (R) tackles Chievo Verona's Sergio Pellissier during their Italian Serie A soccer match at San Siro stadium in Milan October 28, 2015. REUTERS/Alessandro Garofalo

AC Milan's Riccardo Montolivo (R) challenges Sassuolo Gregoire Defrel during their Serie A soccer match at San Siro stadium in Milan, Italy, October 25, 2015. REUTERS/Alessandro Garofalo

Italy's Riccardo Montolivo (R) is challenged by Norway's Markus Henriksen during their Euro 2016 group H qualifying soccer match at the Olympic Stadium in Rome, Italy, October 13, 2015. REUTERS/Max Rossi
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Norway's Alexander Tettey (top) is challenged by Italy's Riccardo Montolivo during their Euro 2016 group H qualifying soccer match at the Olympic Stadium in Rome, Italy, October 13, 2015. REUTERS/Max Rossi
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Norway's Alexander Tettey (L) is challenged by Italy's Riccardo Montolivo during their Euro 2016 group H qualifying soccer match at the Olympic Stadium in Rome, Italy, October 13, 2015. REUTERS/Max Rossi
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Norway's Alexander Tettey (top) is challenged by Italy's Riccardo Montolivo during their Euro 2016 group H qualifying soccer match at the Olympic Stadium in Rome, Italy, October 13, 2015. REUTERS/Max Rossi 

Norway's Alexander Tettey (L) is challenged by Italy's Riccardo Montolivo during their Euro 2016 group H qualifying soccer match at the Olympic Stadium in Rome, Italy, October 13, 2015. REUTERS/Max Rossi 

Italy's Riccardo Montolivo (R) is challenged by Norway's Markus Henriksen during their Euro 2016 group H qualifying soccer match at the Olympic Stadium in Rome, Italy, October 13, 2015. REUTERS/Max Rossi 

AC Milan's Riccardo Montolivo (L) challenges Tottenham Hotspur's Nacer Chadli during their pre-season Audi Cup tournament third place soccer match in Munich, Germany, August 5, 2015. REUTERS/Michaela Rehle 

AC Milan midfielder Riccardo Montolivo looks on during a news conference after a training session in Shenzhen, China July 24, 2015. The team will play against FC Internazionale at the International Champions Cup friendly match in Shenzhen on Saturday. REUTERS/Bobby Yip 

AC Milan's (from L to R) Philippe Mexes, Ignazio Abate e Riccardo Montolivo react at the end of their Italian Serie A soccer match against Torino at Olympic Stadium in Turin January 10, 2015. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER) 

AC Milan's (from L to R) Riccardo Montolivo, Mbaye Niang, Philippe Mexes and Pablo Armero react during their Italian Serie A soccer match against Torino at Olympic Stadium in Turin January 10, 2015. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER)