Michael Carl "Mike" Bryan (born April 29, 1978) is an American professional tennis player. The right-hander turned professional in 1998. With his twin brother Bob, he has been World No. 1 doubles player for the last several years, first achieving the top ranking in September 2003. The brothers became the second men's doubles team to complete the career golden slam, through winning the 2012 Summer Olympics. He currently holds the records for the most ATP men's doubles titles (108) and finals appearances (154), and is tied for fourth all-time in men's titles in the Open Era, all with his brother, with the exception of one title with Mahesh Bhupathi and another with Mark Knowles.