Soccer Football - Serie A - Empoli v AC Milan - Stadio Carlo Castellani, Empoli, Italy - December 22, 2021 AC Milan coach Stefano Pioli with assistant coach Daniele Bonera before the match REUTERS/Jennifer Lorenzini 

Soccer Football - Serie A - Sampdoria v AC Milan - Stadio Comunale Luigi Ferraris, Genoa, Italy - December 6, 2020 AC Milan assistant coach Daniele Bonera before the match REUTERS/Jennifer Lorenzini 

Soccer Football - Europa League - Group H - Lille v AC Milan - Stade Pierre-Mauroy, Lille, France - November 26, 2020 AC Milan assistant coach Daniele Bonera embraces Samu Castillejo and Theo Hernandez at the end of the match REUTERS/Pascal Rossignol 

Soccer Football - Europa League - Group H - Lille v AC Milan - Stade Pierre-Mauroy, Lille, France - November 26, 2020 AC Milan assistant coach Daniele Bonera looks dejected at the end of the match REUTERS/Pascal Rossignol 

Soccer Football - Europa League - Group H - Lille v AC Milan - Stade Pierre-Mauroy, Lille, France - November 26, 2020 AC Milan assistant coach Daniele Bonera REUTERS/Pascal Rossignol 

Soccer Football - Serie A - Napoli v AC Milan - Stadio San Paolo, Naples, Italy - November 22, 2020 AC Milan assistant coach Daniele Bonera REUTERS/Ciro De Luca 

Soccer Football - Serie A - Napoli v AC Milan - Stadio San Paolo, Naples, Italy - November 22, 2020 AC Milan’s Theo Hernandez celebrates with assistant coach Daniele Bonera at the end of the match REUTERS/Ciro De Luca 

Soccer Football - Europa League - Group Stage - Group G - SK Rapid Wien v Villarreal - Allianz Stadion, Vienna, Austria - November 8, 2018 Villarreal's Daniele Bonera REUTERS/Heinz-Peter Bader 

Soccer Football - Europa League - Group Stage - Group G - SK Rapid Wien v Villarreal - Allianz Stadion, Vienna, Austria - November 8, 2018 Rapid Wien's Andrija Pavlovic in action with Villarreal's Daniele Bonera REUTERS/Heinz-Peter Bader 

Soccer Football - Europa League - Group Stage - Group G - Spartak Moscow v Villarreal - Spartak Stadium, Moscow, Russia - October 4, 2018 Villarreal's Daniele Bonera REUTERS/Sergei Karpukhin 

Soccer Football - Europa League - Group Stage - Group G - Spartak Moscow v Villarreal - Spartak Stadium, Moscow, Russia - October 4, 2018 Villarreal's Daniele Bonera in action with Spartak Moscow's Ze Luis REUTERS/Sergei Karpukhin 

Soccer Football - La Liga Santander - Villarreal vs Atletico Madrid - Estadio de la Ceramica, Villarreal, Spain - March 18, 2018 Atletico Madrid's Diego Costa in action with Villarreal's Daniele Bonera REUTERS/Heino Kalis 

Soccer Football - Europa League Round of 32 Second Leg - Villarreal vs Olympique Lyonnais - Estadio de la Ceramica, Villarreal, Spain - February 22, 2018 Lyon's Memphis Depay in action with Villarreal's Daniele Bonera REUTERS/Heino Kalis 

Soccer Football - Europa League Round of 32 Second Leg - Villarreal vs Olympique Lyonnais - Estadio de la Ceramica, Villarreal, Spain - February 22, 2018 Villarreal's Daniele Bonera in action with Lyon's Mariano REUTERS/Heino Kalis 

Soccer Football - La Liga Santander - Real Madrid vs Villarreal - Santiago Bernabeu, Madrid, Spain - January 13, 2018 Real Madrid’s Cristiano Ronaldo in action with Villarreal's Daniele Bonera REUTERS/Javier Barbancho 

Soccer Football - Europa League - Villarreal training - Eden Arena, Prague, Czech Republic - November 1, 2017 - Villarreal's Denis Cheryshev and Daniele Bonera react during training. REUTERS/David W Cerny 

Soccer Football - Europa League - Maccabi Tel Aviv vs Villarreal - Netanya Stadium, Tel Aviv, Israel - September 28, 2017 Villarreal's Daniele Bonera in action with Maccabi Tel Aviv's Tino-Sven Susic REUTERS/Ammar Awad 

Football Soccer - AS Roma v FC Villarreal - UEFA Europa League Round of 32 Second Leg - Olympic Stadium, Rome, Italy - 23/2/17 Roma's Francesco Totti in action with Villarreal's Daniele Bonera Reuters / Alessandro Bianchi Livepic 

Football Soccer - AS Roma v FC Villarreal - UEFA Europa League Round of 32 Second Leg - Olympic Stadium, Rome, Italy - 23/2/17 Villarreal's Daniele Bonera in action with Roma's Francesco Totti Reuters / Alessandro Bianchi Livepic 

Britain Football Soccer - Liverpool v Villarreal - UEFA Europa League Semi Final Second Leg - Anfield, Liverpool, England - 5/5/16
Villarreal's Daniele Bonera walks off dejected after the game
Action Images via Reuters / Lee Smith
Livepic
EDITORIAL USE ONLY. 

Football Soccer - Spanish Liga BBVA- Real Madrid v Villarreal - Santiago Bernabeu stadium, Spain - 20/04/16. Real Madrid's Cristiano Ronaldo and Villarreal's Daniele Bonera in action. REUTERS/Juan Medina 

Football Soccer - Spanish Liga BBVA - Real Madrid v Villarreal - Santiago Bernabeu stadium, Spain - 20/04/16. Real Madrid's Cristiano Ronaldo and Villarreal's Daniele Bonera in action. REUTERS/Juan Medina 

Football Soccer - Atletico Madrid v Villarreal - Spanish Liga BBVA - Vicente Calderon stadium, Madrid, Spain - 21/2/16 Atletico Madrid's Fernando Torres and Villarreal's Daniele Bonera in action REUTERS/Susana Vera 

Barcelona's Neymar (L) shoots a ball against Villarreal's Daniele Bonera (C) and Mario Gaspar during their Spanish first division soccer match at Camp Nou stadium in Barcelona, Spain, November 8, 2015. REUTERS/Albert Gea 

Rapid Wien's Florian Kainz (R) and Villarreal's Daniele Bonera fight for the ball during their Europa league soccer match in Vienna, Austria, September 17, 2015. REUTERS/Heinz-Peter Bader 

Villarreal's Leo Baptistao reacts with Daniele Bonera (L) after scoring a goal during their Europa league soccer match against Rapid Wien in Vienna, Austria, September 17, 2015. REUTERS/Heinz-Peter Bader 

AC Milan's Philippe Mexes (R) celebrates with his teammates (L-R) Gabriel Paletta, Giampaolo Pazzini and Daniele Bonera after scoring against Hellas Verona during their Italian Serie A soccer match at San Siro Stadium in Milan March 7, 2015. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER) 

AC Milan's Jeremy Menez (R) celebrates with his team mates Sulley Muntari and Daniele Bonera (L) after scoring against Hellas Verona during their Italian Serie A soccer match at San Siro Stadium in Milan March 7, 2015. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER) 

Real Madrid's Isco (R) fights for the ball with AC Milan's Daniele Bonera during their friendly soccer match in Dubai December 30, 2014. REUTERS/Stringer (UNITED ARAB EMIRATES - Tags: SPORT SOCCER) 

Atletico Madrid's Diego Costa (R) fights for the ball with AC Milan's Daniele Bonera during their Champions League last 16 second leg soccer match at Vicente Calderon stadium in Madrid March 11, 2014. REUTERS/Sergio Perez (SPAIN - Tags: SPORT SOCCER) 

Atletico Madrid's Diego Costa (L) and AC Milan's Daniele Bonera fight for the ball during their Champions League last 16 second leg soccer match at Vicente Calderon stadium in Madrid March 11, 2014. REUTERS/Sergio Perez (SPAIN - Tags: SPORT SOCCER) 

Atletico Madrid's Diego Costa (L) challenges AC Milan's Daniele Bonera during their Champions League last 16 second leg soccer match at Vicente Calderon stadium in Madrid March 11, 2014. REUTERS/Sergio Perez (SPAIN - Tags: SPORT SOCCER) 

Juventus' Fernando Llorente is challenged by AC Milan's Daniele Bonera (top) during their Italian Serie A soccer match at the San Siro stadium in Milan March 2, 2014. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER) 

Juventus' Fernando Llorente is challenged by AC Milan's Daniele Bonera (front) during their Italian Serie A soccer match at the San Siro stadium in Milan March 2, 2014. REUTERS/Giorgio Perottino (ITALY - Tags: SPORT SOCCER) 

AC Milan's Mario Balotelli (R) celebrates with teammates Kaka (L) and Daniele Bonera (C) after scoring during their Italian Serie A soccer match against Cagliari at the Sant'Elia stadium in Cagliari January 26, 2014.
REUTERS/Max Rossi (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (C) fights for the ball with Inter Milan's Fredy Guarin (L) as AC Milan's Nigel De Jong watches during their Italian Serie A soccer match at San Siro stadium in Milan December 22, 2013. REUTERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (R) challenges AS Roma's Francesco Totti during their Italian Serie A soccer match at San Siro stadium in Milan, December 16, 2013. REUTERS/Stefano Rellandini (ITALY - Tags: SPORT SOCCER) 

AC Milan's Christian Zapata (L) celebrates with his teammate Daniele Bonera after scoring against AS Roma during their Italian Serie A soccer match at San Siro stadium in Milan December 16, 2013. REUTERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER) 

AC Milan's Christian Zapata (R) celebrates with his teammate Daniele Bonera after scoring against AS Roma during their Italian Serie A soccer match at San Siro stadium in Milan December 16, 2013. REUTERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER) 

AC Milan's Christian Zapata (L) celebrates with his teammate Daniele Bonera after scoring against AS Roma during their Italian Serie A soccer match at San Siro stadium in Milan December 16, 2013. REUTERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera challenges Celtic's Georgios Samaras (R) during their Champions League soccer match in Celtic Park Stadium, Glasgow, Scotland November 26, 2013. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera challenges Celtic's Georgios Samaras (R) during their Champions League soccer match in Celtic Park Stadium, Glasgow, Scotland November 26, 2013. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (R) fights for the ball with Genoa's Alberto Gilardino during their Italian Serie A soccer match at San Siro stadium in Milan November 23, 2013. REUTERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER) 

Lazio's Miroslav Klose (R) celebrates after his teammate Antonio Candreva (not seen) scored as AC Milan's Daniele Bonera (L) watches during their Italian Serie A soccer match at the Olympic stadium in Rome October 20, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (L) and Lazio's Miroslav Klose fight for the ball during their Italian Serie A soccer match at the Olympic stadium in Rome October 20, 2012. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (R) jumps for the ball against Lazio's Miroslav Klose during their Italian Serie A soccer match at Olympic stadium in Rome October 20, 2012. REUTERS/Stefano Rellandini (ITALY - Tags: SPORT SOCCER) 

Inter Milan's Yuto Nagatomo (R) is challenged by AC Milan's Daniele Bonera during their Italian Serie A soccer match at San Siro stadium in Milan October 7, 2012. REUTERS/Stefano Rellandini (ITALY - Tags: SPORT SOCCER) 

Inter Milan's Javier Zanetti (R) is tackled by AC Milan's Daniele Bonera during their Italian Serie A soccer match at San Siro stadium in Milan October 7, 2012. REUTERS/Stefano Rellandini (ITALY - Tags: SPORT SOCCER) 

Inter Milan's Diego Milito (R) celebrates with teammate Walter Samuel (2nd R) after scoring as AC Milan's Daniele Bonera (L) and Alessandro Nesta looks on during their Italian Serie A soccer match at the San Siro stadium in Milan May 6, 2012. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (R) challenges Barcelona's Lionel Messi during their Champions League quarter-final first leg soccer match at the San Siro stadium in Milan, March 28, 2012. REUTERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER)

AC Milan's Daniele Bonera (R) challenges by Barcelona's Andres Iniesta during their Champions League quarter-final first leg soccer match at the San Siro stadium in Milan, March 28, 2012. REUTERS/Stefano Rellandini (ITALY - Tags: SPORT SOCCER)

AC Milan's Daniele Bonera reacts during their Champions League quarter-final first leg soccer match against Barcelona at the San Siro stadium in Milan March 28, 2012. REUTERS/Albert Gea (ITALY - Tags: SPORT SOCCER) 

Barcelona's Andres Iniesta (L) is challenged by AC Milan's Daniele Bonera during their Champions League quarter-final first leg soccer match at the San Siro stadium in Milan, March 28, 2012. REUTERS/Albert Gea (ITALY - Tags: SPORT SOCCER) 

Barcelona's Andres Iniesta (L) jumps for the ball against AC Milan's Daniele Bonera during their Champions League quarter-final first leg soccer match at the San Siro stadium in Milan, March 28, 2012. REUTERS/Albert Gea (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera (L) is challenged by Barcelona's Seydou Keita during their Champions League quarter-final first leg soccer match at the San Siro stadium in Milan, March 28, 2012. REUTERS/Max Rossi (ITALY - Tags: SPORT SOCCER) 

AC Milan's Daniele Bonera challenges by Barcelona's Seydou Keita during their Champions League quarter-final first leg soccer match at the San Siro stadium in Milan, March 28, 2012. REUTERS/Albert Gea (ITALY - Tags: SPORT SOCCER)

AC Milan's Antonio Nocerino (R) celebrates with his teammate Daniele Bonera after scoring against Lecce during their Italian Serie A soccer match at the San Siro stadium in Milan March 11, 2012. REUTERS/Alessandro Bianchi (ITALY - Tags: SPORT SOCCER) 

Viktoria Plzen's Marek Bakos heads the ball as AC Milan players (L-R) Mattia De Sciglio, Taye Taiwo and Daniele Bonera look on during their Group H Champions League match in Prague, December 6, 2011. REUTERS/Petr Josek (CZECH REPUBLIC - Tags: SPORT SOCCER TPX IMAGES OF THE DAY) 

AC Milan's Daniele Bonera and Mattia De Sciglio (R) challenge Milan Petrzela (C) of Viktoria Plzen during their Champions League Group H soccer match in Prague December 6, 2011. REUTERS/Petr Josek (CZECH REPUBLIC - Tags: SPORT SOCCER) 

AC Milans's Kevin-Prince Boateng (C) celebrates with his teammates Taye Taiwo (L) and Daniele Bonera after scoring the second goal against BATE Borisov their Champions League soccer match at the San Siro stadium in Milan October 19, 2011. RETUERS/Alessandro Garofalo (ITALY - Tags: SPORT SOCCER)