ROME, Jan 14 (Reuters) - AC Milan found the going tough as they drew 0-0 against a determined Chievo Verona side in the first leg of their Italian Cup quarter-final at the San Siro on Tuesday.Despite resting first-team regulars Rivaldo and Andriy Shevchenko, the home side were still able to field an impressive starting line-up, which included Italian international striker Filippo Inzaghi. But it was Chievo who enjoyed the best chances of the first half and came close to grabbing the lead in the 13th minute when midfielder Nikola Lazetic hit the post with a 25-yard grasscutter. In the second half Milan coach Carlo Ancelotti introduced more first-team players, bringing on Rui Costa in place of Brazilian ex-international Leonardo and replacing midfielder Samuele Dalla Bona with Serginho. The result was more possession, but Chievo's defence stood firm, defender John Mensah closing down attacks on the edge of the area. With seven minutes left Milan missed their last good chance to win the match, when Danish striker Jon Dahl Tomasson flicked a header wide from Alessandro Costacurta's cross. The result leaves Milan needing a win or a score draw in the away leg at Verona's Bentegodi stadium next week.