NEW YORK — Tennis players have been serving up a heavy dose of style on the courts this week at the U.S Open. Serena Williams made a brash fashion statement with her denim skirt, black tank top and tall black warm-up performance boots by Nike, an outfit that would be at home in a trendy nightclub, while Wimbledon winner Maria Sharapova sported a short, metallic silver tank dress, also from Nike, in her match Tuesday night. Venus Williams opted for more traditional court attire with a white tank dress adorned with ribbons from Reebok despite the fact that she’s no longer a Reebok-sponsored athlete, while Justine Henin-Hardenne donned an Adidas polo shirt and skirt with the company’s trademark stripes in aqua. Jennifer Capriati, meanwhile, wore a retro-inspired look from Fila’s U.S. Open collection, a far cry from the starry dress she wore last year, while Lindsay Davenport donned a striped number from Nike. Here, some looks from the opening matches this week.