1993
- April 28 – Fans threw beer cups and garbage onto the ice with 8:31 left in the deciding Game 6 of the 1993 Patrick Division Semifinals between the Washington Capitals and New York Islanders after the Capitals' Dale Hunter deliberately hit and badly injured the Islanders' Pierre Turgeon after Turgeon had stolen the puck from Hunter and scored, putting the game out of the Capitals' reach. Hunter was given a match penalty and suspended for the first 21 games of the 1993–94 season.
- April 30 – During a changeover in a tennis match in Hamburg, Germany, tennis star Monica Seles was stabbed in the back by Steffi Graf fan Günter Parche.
Read more about this topic: List Of Violent Spectator Incidents In Sports