Roma coach Jose Mourinho says injuries are taking their toll after defeat at Atalanta.
Roma lost 3-1 on Monday night to leave them equal fourth with AC Milan ahead of next week's meeting.
“I do not agree that we moved the ball too slowly. I think with our limitations, we had a very good performance. It is not possible to remove incidents from the game, as they can decide the result, but they really were individual incidents," Mourinho told DAZN.
“We were in control in the first half, without creating much, but being in complete control. The opening goal was an incident, as a player lost the ball on the left, then Tammy should've just drawn a foul and finished the move there, but instead we stood there watching the ball and Pasalic scored.
“I saw no difference between the teams in the first half. I believe we did better in the second half and after the 2-1, I got the feeling we could turn it around. Another incident decided the match, but I am happy with my players."
Moving onto the looming clash with Milan, Mourinho said: "If on Saturday I have to play, that's not a problem. This is a united team, in difficult moments we are always together and I think the fans are also proud of this team.
“We ended the match with nine men and still hit the upright, which would've been 3-2. It is very, very difficult for me to be critical of this squad. It plays within its limits. I don't want to say today's result is unjust, because mistakes are part of the game and you pay for those, but those who played and don't usually play, those who came off the bench to help out, I am super satisfied with the lads."