ARLINGTON, Texas (AP)—Jerry Jones has found another unique way to use his massive Cowboys Stadium. Tennis, anyone? Six days after Wimbledon, the $1.2 billion stadium will host a pair of best-of-three matches, featuring Serena Williams against Maria Sharapova, and Andy Roddick against John Isner. The showcase, to be held July 10, is called the Cowboys Tennis Slam and it is being billed as the inaugural event. In addition to the NFL, Cowboys Stadium already has hosted the NBA All-Star game, soccer and a world title fight.