Roger Federer , Serena Williams , and Victoria Azarenka have continued the tradition of dominance with their new .
Roger Federer , Serena Williams , and Victoria Azarenka improved Wilson Pro Staff BLX , Ultra , Burn , Burn FST , Blade , and Juice , tennis racquets .
Roger Federer , Serena Williams , and Victoria Azarenka have continued the tradition of dominance with their new and improved Wilson Pro Staff BLX , Ultra , Burn , Burn FST , Blade , and Juice , tennis racquets .