Luciano Spalletti said three Inter players asked to be substituted at half-time as he criticised AC Milan's physical approach after star midfielder Radja Nainggolan was injured.
Inter claimed a last-gasp 1-0 Serie A victory over Milan thanks to Mauro Icardi's 92nd-minute header at San Siro but Sunday's derby success appears to have come at a cost.
Spalletti fears Nainggolan could be sidelined for "a while" after the Belgian limped off following a heavy tackle from Milan's Lucas Biglia.
Speaking post-match, Spalletti told reporters: "Milan are a technical team but they are also as physical a team as we are because they committed many fouls.
"They had a very tough approach, and we were penalised by these fouls.
"At the end of the first half I had three players that were asking me to be replaced."
Chi ha segnato? pic.twitter.com/dIeFiT97Gc— Inter (@Inter) October 21, 2018
Inter were the better side for most of the match, completely dominating the first half, but the derby showdown appeared to be heading for a draw.
That was until Milan goalkeeper Gianluigi Donnarumma misjudged Matias Vecino's cross and Inter captain Icardi pounced, heading into an empty net.
"The team have played the match they were supposed to play," Spalletti said. "They showed courage, they put their talent into the game, because Vecino's cross is something that was born out of talent, Icardi's goal was born out of talent, and naturally if this is the attitude, you help luck coming your way.
"Luck or the possibility to change the score of the game even in the last minutes, because all this always depends on the attitude you have. Everything becomes easier and the crowd is more involved and everything becomes much nicer."
20 de abril 2019
|Sarri: Chelsea´s League Cup run on par with Tottenham´s heroics|
|Barcelona 2 Real Sociedad 1: Lenglet and Alba bring title closer|
|Inter 1 Roma 1: Perisic answers El Shaarawy stunner|
|La Rochelle edge past Sale to book Challenge Cup final berth|
|Capitals enjoy home comforts again to reign over Kings XI|
|Ronaldo proud of first Serie A season as Juventus celebrate title triumph|
|Ronaldo confirms Juventus stay after Serie A success|
|He´s showing great commitment - Gracia hails match-winner Deulofeu|
|Parker and Fulham ´discussing plans´ for next season|
|Juventus 2018-19: Ronaldo´s goals key to eighth successive Scudetto|
|I´m thankful that I´m playing for them - Vunipola grateful for support at Saracens|
|Newcastle United 3 Southampton 1: Perez hat-trick all but seals safety|
|Juventus 2018-19: Bianconeri join Europe´s fastest title triumphs|
|That point could make the difference - Ryan salutes resolute Brighton|
|Atletico Madrid defender Gimenez dislocates toe in Eibar win|
|Kovac: Patience key to crucial Bayern victory|
|Juventus 2018-19: How the Old Lady won an eighth straight Serie A title|
|Juventus 2018-19: The AC Milan team last to rule before the Bianconeri´s dominance|
|Juventus 2 Fiorentina 1: Bianconeri bounce back to seal Scudetto|
|Juventus seal eighth successive Serie A title|
|Pellegrini blames officials for more dropped West Ham points|
|Valencia appears to confirm Manchester United exit in Instagram post|
|Brumbies hold firm to see off Stormers|
|Halep on form but France draw level in Fed Cup semi|
|Pochettino refuses to criticise officials after missing out on penalty|
|Farrell guides Saracens into Champions Cup final|
|Eibar 0 Atletico Madrid 1: Lemar strikes late at Ipurua|
|Fabulous Fognini ends Nadal´s Monte Carlo winning streak|
|Bournemouth 0 Fulham 1: Mitrovic on target as Parker´s men win again|
|West Ham 2 Leicester City 2: Last-gasp Barnes strike grabs dramatic draw|
|Huddersfield Town 1 Watford 2: Deulofeu double lifts Watford into seventh|
|Wolves 0 Brighton and Hove Albion 0: Hughton´s men stop rot with stalemate|
|Now I am a genius – Guardiola applauds match-winner Foden|
|Bayern Munich 1 Werder Bremen 0: Fortunate Sule strike edges Kovac´s side closer|
|A-League Review: Brisbane Roar in historic humiliation at home to Newcastle Jets|
|Nerves played a part, admits Bernardo Silva|
|New captain Smith makes fifty as Royals triumph|
|Guardiola suggests De Bruyne´s season could be over after Spurs injury|
|Khan giving no thought to Brook ahead of Crawford battle|
|Lajovic reels off 10 straight games to stay perfect in Monte Carlo|
|Gattuso slams ´naive´ AC Milan after Parma draw|
|Manchester City 1 Tottenham 0: Foden nets first league goal as Spurs fail to dent champions´ title d|
|Waratahs rally to victory in Folau´s absence|
|De Bruyne suffers another injury in blow to Manchester City´s title challenge|
|Parma 1 AC Milan 1: Alves equaliser stuns Gattuso´s men|
|Van Dijk & Sterling lead PFA Player of the Year nominations|
|Ravalawa try seals Dragons win as Sea Eagles fume|
|Zidane cool on Mbappe to Real Madrid talk|
|Irving feels Celtics ´have come a long way´ after beating Pacers again|
|Westbrook a man of his word - George hails Thunder star after prickly win|
|Foden set for second league start, Spurs make five changes|
|Barty beats Azarenka to level up Fed Cup semi-final|
|Alisson thrilled at Joe Gomez´s return from injury|
|Neymar in line for PSG return versus Monaco|
|Azema signs new Clermont contract until 2023|
|Falcao: I´ve got years left at top level|
|Crawford aims to state pound-for-pound case against Khan|
|How Emery´s numbers compare to Arsenal predecessor Wenger|
|Hendricks leads Cubs to fourth straight win|
|MLS Review: Ibrahimovic, Galaxy continue fine form|
|Raptors hold off Magic, Celtics extend lead over Pacers|
|Valverde wary of ´powerful´ Liverpool|
|Raptors star Leonard played through sickness against Magic|
|Djokovic upbeat over French Open chances despite form dip|
|Zaha hints at Palace exit, eyes Champions League|
|I messed up – Miller speaks out after second failed test|
|Johnson continues good form, Lowry leads|
|DeGrom to undergo MRI for elbow ailment|
|Guardiola is world´s best coach – Valverde|
|Klopp: Liverpool still embracing pressure|