A stunning Serena Williams attended the Hamptons Magazine Cover Party Wednesday night in a leopard print dress. The tennis star's fresh-faced new look ignited a flurry of speculation over whether she'd undergone a cosmetic procedure or was just the recipient of a good makeover.

The No. 1-ranked Williams recently withdrew from the U.S. Open to give herself time to recover from surgery to repair cuts on her right foot.

PEOPLE reported, "Williams was reportedly hurt by a broken glass at a restaurant while she was in Munich – shortly after winning her fourth Wimbledon singles title – last month and had surgery on July 15. "