Stefano Pioli denied his substitutions were to blame but acknowledged Milan had "messed up" after Roma snatched a 2-2 draw in a dramatic finish to their Serie A clash at San Siro.
Having watched Napoli go eight points clear at the summit by beating Sampdoria earlier on Sunday, Milan looked set to cut the gap once again as goals from Pierre Kalulu and Tommaso Pobega put them in command.
However, Roger Ibanez halved the deficit with Roma's first shot on target in the 87th minute, before Tammy Abraham pounced on a rebound from a stoppage-time free-kick to rescue a point.
The remarkable finale saw Milan fail to win a Serie A match when 2-0 up after 85 minutes for the first time since 2009, leaving Pioli stunned after the Rossoneri dominated the contest.
"We must continue to play like this but remember that matches finish in the 95th minute and that more attention is needed," he told DAZN.
"We conceded two goals from set-pieces which we can't concede. We are disappointed, we played well and we deserved to win. Unfortunately, we messed up our own lives."
In his post-match press conference, Pioli was asked whether his decision to introduce a third central defender in Matteo Gabbia invited a late spell of Roma pressure, but he does not believe the change – or a lack of application from his players – was to blame.
"Oddly enough we conceded two goals from set-pieces when we had more central defenders on the pitch. I reviewed the goal and there were some errors in marking," he said.
"When I make substitutions, I always think they are the best things for the team. We gave away a corner and made mistakes on set-pieces.
"I don't think the tactical aspect has anything to do with it. I don't think we lost points for the three-man defence. Maybe I'll bring it in again.
"It will teach us to stay more focused in the next matches. It wasn't a problem of attitude. If we talk about willpower and spirit, we are second to none."
Roma failed to have a shot on target in the first half of a Serie A game for the third time this season on Sunday, while 48 per cent of their league goals this term have now come from set-pieces (10/21).
Despite the Giallorossi's lack of creativity, Abraham was always confident he would get a chance, telling DAZN: "We had to be patient, this is a difficult stadium.
"We knew that an opportunity could come, I felt it in the finale and I was good. Before the [World Cup] break, I said we would be back in shape, now let's continue like this."
Leicester's Fatawu ruled out for rest of season with ACL injury
Leicester City manager Steve Cooper confirmed Abdul Fatawu will miss the rest of the season.
The 20-year-old sustained an anterior cruciate ligament injury (ACL) while playing for Ghana against Angola during the international break.
Fatawu has featured in all 11 of Leicester's Premier League matches so far this season and has registered two assists.
No Leicester player has attempted (61) or completed (29) more dribbles than him, while his 30 crosses is also a team-high in the top-flight this season.
"It's not good, it's a serious injury," said Cooper ahead of their match against Chelsea on Saturday.
"It's a real blow, first and foremost for him, being a young player and having an injury as serious as what an ACL is.
"Albeit, it can be quite common in sport, and in particular football, but it's still a serious injury.
"For it to happen at a young age is a blow for him and a blow for us as well.
"He's obviously a big talent and a young player, as exciting as he can be at his age, with lots to learn.
"It's only a pause, and we will make sure, as difficult as it is at the moment for him, that he comes back being a stronger player and person, which, with the mentality and character that he has, I think will be the case."
Arsenal qualifying for Champions League quarter-finals feels 'surreal', says Slegers
Renee Slegers says it feels "surreal" that Arsenal have secured their place in the Champions League quarter-finals with two games to spare.
The Gunners will finish at least second in Group C after Lina Hurtig's late strike secured a 1-0 win over Juventus on Thursday.
What looked to be a frustrating encounter was turned around by Slegers' substitutions, and after missing a glorious chance, Hurtig was eventually the difference at the Emirates.
Arsenal created 3.69 expected goals (xG) from their nine shots, getting three on target, compared to just 0.5 for Juventus, who tested Daphne van Domselaar the same amount of times.
Slegers was impressed by her side's resilience as they pushed to come away with all three points.
"It's surreal to be honest," Slegers said post-match. "I never felt we would get into this situation. We have done really well.
"I was part of Jonas [Eidevall's] staff and there was so much that was built during his time. I don't want to separate that. There is so much we are still building on. It's surreal in so many ways but we are very happy.
"I'm just happy for the team to win. Obviously, we have amazing depth in the squad, and we know anyone can do it for us - whether it's starting players or finishing players.
"It's the visualisation of how much everyone contributes in the team. I think that's what it means for us."
Slegers took over as interim manager following Jonas Eidevall's departure last month and has gone unbeaten in her first seven games, winning six and drawing one.
They have won each of their last five in all competitions, and have not conceded a goal in their previous four matches.
"It was just a very impressive block of the team," Slegers said. "We conceded only one goal during this whole block, so defensively very solid.
"The players have been stepping up big time, they've been owning this; we tried to relay it back to them all the time, so giving them the ownership.
"I'm just very happy with how the block has been, different challenges along the way, so all games have asked something different from us. We've responded to that really well, sticking to our identity but also playing the game that's ahead of us."
Arsenal qualifying for Champions League quarter-finals feel surreal, says Slegers
Renee Slegers says it feels "surreal" that Arsenal have secured their place in the Champions League quarter-finals with two games to spare.
The Gunners will finish at least second in Group C after Lina Hurtig's late strike secured a 1-0 win over Juventus on Thursday.
What looked to be a frustrating encounter was turned around by Slegers' substitutions, and after missing a glorious chance, Hurtig was eventually the difference at the Emirates.
Arsenal created 3.69 expected goals (xG) from their nine shots, getting three on target, compared to just 0.5 for Juventus, who tested Daphne van Domselaar the same amount of times.
Slegers was impressed by her side's resilience as they pushed to come away with all three points.
"It's surreal to be honest," Slegers said post-match. "I never felt we would get into this situation. We have done really well.
"I was part of Jonas [Eidevall's] staff and there was so much that was built during his time. I don't want to separate that. There is so much we are still building on. It's surreal in so many ways but we are very happy.
"I'm just happy for the team to win. Obviously, we have amazing depth in the squad, and we know anyone can do it for us - whether it's starting players or finishing players.
"It's the visualisation of how much everyone contributes in the team. I think that's what it means for us."
Slegers took over as interim manager following Jonas Eidevall's departure last month and has gone unbeaten in her first seven games, winning six and drawing one.
They have won each of their last five in all competitions, and have not conceded a goal in their previous four matches.
"It was just a very impressive block of the team," Slegers said. "We conceded only one goal during this whole block, so defensively very solid.
"The players have been stepping up big time, they've been owning this; we tried to relay it back to them all the time, so giving them the ownership.
"I'm just very happy with how the block has been, different challenges along the way, so all games have asked something different from us. We've responded to that really well, sticking to our identity but also playing the game that's ahead of us."
SportsMax is the Caribbean sports channel of choice, committed to providing sporting content of the highest quality to the Caribbean, delivered by a team of highly innovative, passionate and qualified professionals.
(876) 619-7629
digitalmedia@sportsmax.tv
