Serena, Nadal, Federer and Sharapova roll at Wimbledon

Roger Federer, Rafael Nadal, Serena Williams and Maria Sharapoa all won in straight sets Saturday to reach the fourth round at Wimbledon.

Source: http://rssfeeds.usatoday.com/~r/UsatodaycomSports-TopStories/~3/yihLBepK9y4/2011-06-25-wimbledon-day-6_n.htm

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