Venus and Serena Williams
Move over, Manning brothers… the Williams sisters are the real rulers of sports when it comes to siblings. Venus and Serena share the all-time record for most Olympic gold medals (four each) in the sport of tennis. Venus, 33, holds a total of 22 Grand Slam titles while Serena, 32, holds 32. —XFINITY Entertainment Staff (Photo by Al Bello/Getty Images)
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