Alessandro Nesta has been ruled out of AC Milan\'s clash with Napoli tomorrow with a recurrence of a muscle problem. He may also miss Wednesday\'s Italian Cup semi-final first leg against Juventus. It is a blow for Milan, who are fresh from a costly 2-0 defeat at Lazio that sees them a point behind Juve in the league having played a game more. They lost 3-1 at Napoli earlier in the season.