The Rossoneri were humbled by a Luca Toni double on the opening day of Serie A on Saturday, prompting the club's captain to urge the squad to up their game ahead of the second-leg of their European play-off on Wednesday.
"Each of us must look at ourselves and give something more to win games, fortunately we have an important match and we will look to make up for everything," he told reporters.
"We cannot make a repeat of how we started last season, luckily we have this crucial match on Wednesday.
"We know it is a crossroads for our season, we have to turn the page and focus on this match at the San Siro."
Milan led Verona until the half hour mark thanks to Andrea Poli's 15th minute strike, but two goals from Toni condemned Massimiliano Allegri's side to defeat.