Former No. 1 Naomi Osaka announces split with coach Wim Fissette
Former world No. 1 Naomi Osaka has officially parted ways with her coach, Wim Fissette, following a series of recent disappointing performances, including an early exit from the US Open just over two weeks ago. Osaka, 26, has enjoyed significant success with the Belgian coach, winning two of her four Grand Slam titles under his…