Former world No. 1 Naomi Osaka will return to Japan to contest the Toray Pan Pacific Open in September, organizers said Thursday.The announcement came shortly after coach Wim Fissette revealed he was no longer working with the four-time Grand Slam champion.Osaka has a history of success at the Pan Pacific Open, winning in 2019 and finishing runner-up in 2018 and 2016, when she reached her first WTA tour event final.This year's tournament will run from Sept. 19-25 at Tokyo's Ariake Tennis Park.Currently ranked world No. 38, the 24-year-old Osaka has been sidelined by an Achilles injury since…READ FULL ARTICLE