THE ALL ENGLAND CLUB, London — Naomi Osaka’s transformation into a titan of grass-court tennis took its biggest leap forward Sunday, as she knocked Aryna Sabalenka out of Wimbledon in straight sets.Osaka was nearly untouchable on a warm, still evening in London unlike anything she could have imagined for herself before this year. For a fourth consecutive match, Osaka crushed her serve and groundstokes, pushing the world No. 1 onto her heels and leaving her swatting desperately for balls that cruised and skidded past her.With a 6-2, 7-6(2) victory, Osaka had her biggest win since she returned to the tour after pregnancy in 2024, and perhaps even since her last Grand Slam title win, all the way back in February of 2021.For Sabalenka, it was another difficult result, in an early summer that has had far more of them than she might have anticipated after her mostly scintillating first three months of the season. Sabalenka made the final of the Australian Open and then completed a rare Sunshine Double with wins at the BNP Paribas Open at Indian Wells and then the Miami Open.Why do players wear white at Wimbledon?Ava Wallace and Madison EadesBut as the season moved to the organic surfaces of clay and grass, where it’s harder for her to find the stability she craves, her results grew rocky. That included a quarterfinal meltdown at the French Open, where she served for the match against Russia’s Diana Shnaider before spiraling out of form losing the final 10 games.