"We played our game, we started well and we played like we can but today shouldn't be an exception, we have to find continuity to these results," he told the club's official website.
"We played a big game today. Samp have a strong attack and they tried to play an open game but we did well to respond the way we did. We shouldn't set ourselves limits, we've been through some tough times and they're not necessarily behind us now, so let's just keep our heads down and work hard.
"We have to show that we're improving and there are many factors ahead of the Champions League match. We have to perform like we know how and then we'll see."
Milan are currently ninth in the Serie A table.