AC Milan defender Simon Kjaer admitted frustration after their 0-0 draw at Cremonese.
Kjaer concedes it's an issue to be dropping points against smaller rivals.
He said, "It was a bit the same story as in Spezia ... There are details to be more careful about. Now we have to fix them immediately in view of the match in Sunday.
"We have to finish in the best possible way, today we lost two points. If we win, we will miss two points compared to last year ... but we have to win, nothing else."
On Malick Thiaw's performance, Kjaer added: "Excellent player and excellent young man, he works hard every day. He played an excellent game, very concentrated and hard in duels; he has a lot of quality in the defensive phase."