April 12, 2015 Jack Sock returns a serve from Sam Querrey in the finals of the U.S. Men's Clay Court Championship at River Oaks Country Club in Houston Texas. (Photo by Wilf Thorne/Icon Sportswire/Corbis/Icon Sportswire via Getty Images)
April 12, 2015 Jack Sock returns a serve from Sam Querrey in the finals of the U.S. Men's Clay Court Championship at River Oaks Country Club in Houston Texas. (Photo by Wilf Thorne/Icon Sportswire/Corbis/Icon Sportswire via Getty Images)