Elena Rybakina becomes world number one after US Open victory

Elena Rybakina claimed her second Grand Slam title of the year at the US Open, elevating her to world number one in women's tennis., Kim Clijsters highlighted Rybakina's enhanced fitness and agility this season. Rybakina has made notable improvements in her movement and physical strength, enabling her to compete at a high level across multiple tournaments. Despite some regressed serving stats, her overall fitness has positioned her as a favorite in upcoming events. She is set to participate in the Billie Jean King Cup Finals starting September 22, followed by the China Open and Wuhan Open.

• 12:30 AMYahoo Sports — Kim Clijsters has noticed a major change in Elena Rybakina this year as she becomes world number one