Nigel Benn vs. Gerald McClellan, billed as Sudden Impact, was a professional boxing match contested on 25 February 1995 for the WBC super middleweight championship. Benn was victorious when McClellan was counted out in the 10th round while dropped on one knee. Shortly after the match ended, McClellan collapsed and fell into a coma for two weeks.

As a result of the injuries endured during the fight, McClellan is blind, deaf, forgetful, and crippled. It has been described as "a fight that will be embedded forever in the memories" of those who watched it