Donnarumma: 6.0 (Alert, made a few good saves, perhaps unlucky on the PK. Conceded 3 goals)
Calabria: 5.5 (2019 Calabria)
Kjaer: 6.5 (Atalanta and his teammates gave him a difficult night but he bailed us out a few times)
Kalulu: 5.0 (Had a great start, saving the team on a few occasions until he got bullied by Romero. Should've been subbed earlier, the injury seem to have played a part in the PK incident)
Theo: 5.0 (Pretty bad in both phases.)
Kessie: 5.5 (Not his night. Too sloppy on several occasions. But the Atalanta press would put any midfielder in difficulty)
Tonali: 5.5 (A liability in the first half, but one of very few Milan players with an acceptable 2nd. Took a lot of defensive responsibility and showed a lot of personality in the chaotic last 30 minutes.)
Leao: 5.0 (Very good first 10 mins, terrible rest of his time on the pitch. Still zero chemistry Theo, and not as good as Rebic at playing off Ibra.)
Meite: 3.0 (Proved to be a costly mistake from Pioli. Near useless on and off ball. He wasn't ready for this. Even Krunic was better in his first few outings in that role.)
Samu: 6.0 (Did his part defensively, as usual, and was able to resist their press and maintain possession in their half, but we need more end product.
Ibra: 5.5 (Should've scored but this wasn't his night. His holdup play wasn't as good as usual, although Meite and Leao aren't as good at taking advantage of it as Hakan and Rebic. Atalanta were more physical and intense than he's used to. Not all of them are like Caldara.)
Rebic: 5.0 (We really missed an in form Rebic tonight. We got a rusty one that joined when it was almost over.)
Manduzkic: .. (Gave more than he has at the moment. No chemistry with Ibra. Looked like he was about to pass out at the end.)
Musacchio: 6.0 (Joined at a very difficult moment. Didn't do that badly, considering the circumstances and how little he has played in the last 11 months, but he did get embarrassed on at least one occasion.
Diaz: 5.5 (Another player with a night to forget. Got double pressed as soon as he was on the ball, which proved to be more than he could handle. Still, he was an improvement from Meite and much more of an attacking threat.)