Serena and Venus Williams will play doubles together the US Open‎

Serena and Venus Williams are teaming up again at the U.S. Open. Serena Williams returned to tennis this summer after a four-year absence, and the sisters were set to play at Wimbledon before Serena had to withdraw after injuring her knee in her singles loss. The Williams sisters won the 1999 and 2009 U.S. Open doubles titles and are 27-7 in their nine appearances.