Naomi Osaka is through to the US Open semi-finals and has her sights set on a fifth Grand Slam title. The Japanese player saw off Karolina Muchova 6-4, 7-5 to reach her first Flushing Meadows semi-final since winning it in 2020. Osaka respects Amanda Anisimova, but come Thursday, it’s all business between them. READ MORE: Taylor Fritz backs Novak Djokovic to win US Open but warns of Alcaraz and Sinner It’s been a challenging few years for the 27-year-old, who even considered retiring from tennis at one point. This year’s run hasn’t been perfect for Osaka, but with two US Open titles already un...