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Who is the world No.1 in men's tennis? Updated ATP rankings and explainer

The ATP rankings have been updated, and we'll be keeping track of every player inside the top 10 ahead of the US Open.
Sporting News on MSN

Who is the world No. 1 in women's tennis? Updated WTA rankings and explainer

Women's tennis world rankings are calculated by the WTA, who award points based on a player's performance at particular ...