Action from the U.S. Clay Courts Championships. River Oaks Country Club, 1600 River Oaks Blvd.br/In a grueling match that lasted almost 2-1/2 hours on the center court, Janko Tipsarevic of Serbia and Guilherme Clezar of Brazil.br/Tuesday April 7, 2015 (Craig H. Hartley/For the Chronicle)