The ball boys and girls who work the Wimbledon Tennis Championships train for months to execute the perfect ball roll and bounce. Julian Finney/Getty Images hide caption

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R.A. Dickey currently plays for the New York Mets. He was previously with the Seattle Mariners, Minnesota Twins, Texas Rangers and Milwaukee Brewers. courtesy of the author hide caption

itoggle caption courtesy of the author

The Oracle Racing AC45 catamarans practice in the San Francisco Bay in February. The AC45 is a smaller version of the AC72, which teams will race in next year's America's Cup Finals in 2013. Ezra Shaw/Getty Images hide caption

itoggle caption Ezra Shaw/Getty Images