Serena Easily Wins First U.S. Open Match (AP) AP - Dressed for a night on the town, Serena Williams was all business in her first match in 4 1/2 weeks. Showing little sign of her injury-induced layoff, the two-time U.S. Open champion advanced to the second round with ease, overwhelming Sandra Kleinova of the Czech Republic 6-1, 6-3 Monday night.