Stars of international tennis visit Oklahoma City and the Cox Convention Center to help a wonderful local cause. Andy Roddick, Mardy Fish, John Roddick and Davis Martin pack their rackets to play in the Oklahoma Tennis Classic, scheduled for 6 p.m. Sept. 25. When sets begin, all eyes will be on U.S. top-ranked rivals Andy Roddick and Fish, each of whom has dazzled tennis fans with an impressive array of titles, tour wins and Olympic medals. Before the big singles game, however, fans will enjoy a doubles game teaming Andy Roddick with his brother John Roddick, the University of Oklahoma’s men’s tennis coach. Fish will play with tour player and Tulsa native David Martin. No matter who dominates the match, Big Brothers Big Sisters of Oklahoma will be the big winner with an evening of impressive play and generosity. For more, go to www.coxconventioncenter.com.