US Open 2022 winner Carlos Alcaraz, aged 19, has become the youngest male tennis player to become world number one. US Open 2022 runner-up Casper Ruud has jumped to the second position, while Daniil Medvedev has slipped three spots to the fourth position. Rafael Nadal remains at the third position, while Novak Djokovic dropped one spot to be ranked 7th.