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Roger Federer is a Swiss professional tennis player. He has been world No. 1 in the ATP rankings a total of 310 weeks – including a record 237 consecutive weeks – and has finished as the year-end No. 1 five times.

Roger Federer is a Swiss professional tennis player. He has been world No. 1 in the ATP rankings a total of 310 weeks – including a record 237 consecutive weeks – and has finished as the year-end No. 1 five times.