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The 50 Ugliest Moments in Sports

37 of 50

Clemens, Piazza Clash

Roger Clemens and Mike Piazza had been involved in a bitter rivalry ever since Clemens beaned Piazza with a fast ball that knocked him out cold. That rivalry was reignited during the 2000 World Series when Rocket launched a broken bat at Piazza during Game 2. (AP Photo/Ron Frehm)

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