These players broke one of the unwritten rules of their sport. Welcome to WatchMojo, and today we're looking at notorious times athletes left their team to join a despised rival. Our countdown of athletes who switched to their arch-rivals includes Mark Recchi, Terrell Owens, Babe Ruth, and more! read more...
10 Athletes Who Shocked Fans by Joining Their Rivals
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VOICE OVER: Tom Aglio
WRITTEN BY: Jordy McKen
