Despite the threatening weather, action from the U.S. Clay Courts Championships continued today at River Oaks Country Club, 1600 River Oaks Blvd.br/Sam Querrey of the USA and Jack Sock of the USA play in the center court. Jack Sock wins the hard fought tournament.br/ID: Jack Sock gives the trophy a kiss.br/Sunday April 12, 2015 (Craig H. Hartley/For the Chronicle)