Which tennis player won a major tennis championship in singles, Juan Martín del Potro or Bob Bryan?
Bob Bryan Robert Charles Bryan (born April 29, 1978) is an American male professional tennis player. He has won twenty-three Grand Slam titles: 16 in men's doubles and 7 in mixed doubles. He turned professional in 1998. With his twin brother Mike, he has been world No. 1 doubles player for much of the last several years, first achieving the top ranking in September 2003. 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.
Brian Levine Brian Levine (born 20 August 1958 in Cape Town, South Africa), is a former South African tennis player who played professional tennis from 1982 through to 1988. In his career, Brian played in 24 Grand Slams (French Open, Wimbledon, US Open & Australian Open). Brian's first major grand slam was Wimbledon in 1983 where he qualified for the doubles with a young 18-year-old called Stefan Edberg. Brian competed in over 200 tournaments worldwide on the ATP Tour.