Serena Williams vs Bethanie Mattek-Sands Full Match | US Open 2015 Round 3

Serena Williams and Bethanie Mattek-Sands go head to head in Round 3 of US Open 2015. Mattek-Sands was competing at the US Open with a wild-card berth after undergoing hip surgery, while Serena was looking to win all four Grand Slam titles in the same year for the first time since Steffi Graf did it 27 years ago. Twitter:   / usta   Facebook:   / usta   Website: https://www.usta.com