Sinisa Mihajlovic said Milan “cannot keep giving our opponents a half” after their 1-0 defeat to Genoa.
The Rossoneri have now lost three of their opening six rounds in Serie A.
“We didn’t have the right determination and Genoa played the game they wanted to. Apart from the goal, they basically created nothing,” Mihajlovic told Mediaset Premium.
“If we had played throughout the way we did in the second half, we would’ve won.
“We were dangerous in attack, but unable to get the equaliser. We cannot keep giving our opponents a half.”
Alessio Romagnoli saw red before the break and will therefore be suspended against Napoli next week.
See the latest Serie A predictions and betting tips with Eurotips.co.uk