AC Milan goalkeeper Dida was hit by a flare thrown from the stands, and Tuesday night's European Champions League quarterfinal in Milan, Italy, against crosstown rival Internazionale was halted with about 15 minutes to play.
AC Milan was ahead, 1-0, and set to advance on 3-0 aggregate when Dida was struck on his left shoulder by the flare in the 73rd minute. The game was stopped, and when referee Markus Merk tried to restart play 10 minutes later, more fireworks were thrown and Merk called the match.
Inter fans were upset that when Esteban Cambiasso put the ball in the net in the 71st minute, the goal was disallowed because of a foul.
The Union of European Football Associations said it will decide whether the result of the game stands.
Security is expected to be tight for today's Champions League quarterfinal between Juventus and Liverpool in Turin. Liverpool won last week's first leg, 2-1, in the first meeting between the clubs since the Heysel Stadium tragedy in which 39 fans were crushed to death in rioting before the 1985 European Cup final in Brussels, Belgium.