Venus Williams of the U.S. hits a return to compatriot Bethanie Mattek-Sands during their women’s singles match at the U.S. Open tennis tournament in New York (Reuters) The American former world number one, a seven-times Grand Slam winner, has suffered serious health problems in recent years but has been on the comeback trail since the start of this season. The 32-year-old claimed Wimbledon and Olympics doubles crowns with her younger sister Serena, but this is her first solo win since the 2010 Acapulco title and her 44th career title.