Which of the following won 19 Grand Slam single titles as a professional tennis player: Roger Federer or Jonathan Stark?
Roger Federer Roger Federer (] ; born 8 August 1981) is a Swiss professional tennis player who is currently ranked world No. 2 in men's singles tennis by the Association of Tennis Professionals (ATP). Federer has won 19 Grand Slam singles titles, the most in history for a male tennis player and has held the world No. 1 spot in the ATP rankings for a record total of 302 weeks, including a record 237 consecutive weeks. After turning professional in 1998, he was continuously ranked in the top ten from October 2002 to November 2016.
Roger Rasheed Roger Rasheed (born 10 March 1969) is a former Australian rules football player, tennis player, tennis coach, and tennis commentator. Rasheed is best known as Grand Slam coach of Australian former World No. 1 Lleyton Hewitt, former French No. 1 Gaël Monfils, former World No. 5 Jo-Wilfried Tsonga, the Top 10 ATP Tour player Grigor Dimitrov and through ProTennisCoach.com. In addition, Rasheed is a media personality on Channel Seven and is the founder of the Roger Rasheed Sports Foundation.