Naomi Osaka Ditches Her Coach
(CNN)Naomi Osaka has enjoyed a year of rare success -- ascending from world No.72 to top of the rankings with a pair of grand slam titles to boot.
The Japanese star's rapid rise would, on the surface at least, suggest a player-coach relationship in fine working order.
Yet 16 days after securing Australian Open glory against Petra Kvitova in Melbourne, the 21-year-old and her coach Sascha Bajin have announced a shock split.
Few details have been released other than a short tweet apiece from the pair.