Roy Stanley Emerson (born 3 November 1936) is an Australian former World Number One tennis player who won 12 Grand Slam singles titles, 16 Grand Slam men's doubles titles, and 2 Grand Slam mixed doubles titles.
He has 28 Grand Slam titles.
He is the only male player to have completed a Career Grand Slam (winning titles at all four Grand Slam events) in both singles and doubles.
His 28 major titles are the all-time record for a male player.
Emerson is the first male player to win each of the four major titles at least twice in his career.
He is one of only eight men to win all four majors in his career.
The others are Fred Perry, Don Budge, Rod Laver, Andre Agassi, Roger Federer, Rafael Nadal and Novak Djokovic.
Emerson was the first male player to win 12 Majors.
He held that record for 30 years until it was passed by Pete Sampras in 2000.
He also held the record of six Australian Open men's singles titles until 2019 when Novak Djokovic won his seventh title.
Emerson won five of them consecutively (1963–67).
Emerson is one of only five tennis players all-time to win multiple slam sets in two disciplines, only matched by Frank Sedgman, Margaret Court, Martina Navratilova and Serena Williams.