Roger Federer (German: [ˈrɔdʒər ˈfeːdərər]; born 8 August 1981) is a Swiss professional tennis player. He is ranked No. 8 in the world by the Association of Tennis Professionals (ATP). He has won 20 Grand Slam men’s singles titles, an all-time record shared with Rafael Nadal.Federer has been world No. 1 in the ATP rankings a total of 310 weeks – including a record 237 consecutive …