Robert Charles "Bob" Bryan (born April 29, 1978) is an American male professional tennis player. He and his twin brother, Mike, are current world no. 1 doubles players and have spent over 380 weeks in this position. He has won twenty-three Grand Slam titles: 16 in men's doubles and 7 in mixed doubles. He turned professional in 1998. The brothers were named ATP Team of the Decade for 2000–2009. The brothers became the second men's doubles team to complete the career golden slam at the 2012 Summer Olympics.