Michael Carl Bryan is an American former professional tennis player. Widely regarded as one of the greatest doubles tennis players of all time, Bryan was ranked as the world No. 1 in men's doubles for a record 506 weeks, and finished as the year-end No. 1 a record ten times. Bryan won a record 128 ATP Tour-level doubles titles, including 22 majors: a record 18 in men's doubles, and four in mixed doubles. Alongside his twin brother Bob, the Bryan brothers were one of the most successful doubles partnerships in tennis history. The pair were named the ATP Team of the Decade for the 2000s. They became the second men's doubles team to complete the career Golden Slam at the 2012 London Olympics, and completed the double career Grand Slam. Mike Bryan also had success partnering Jack Sock, winning two majors and the 2018 ATP Finals, as well as the 2018 ATP World Tour Fans' Favorite Doubles Team.