Naomi Osaka appointed Sascha Bajin as her coach at the start of the 2018 season
Naomi Osaka has announced her split from coach Sascha Bajin, just weeks after winning her second successive Grand Slam title.
The 21-year-old was victorious in the Australian Open last month, to add to the US Open title she won in September last year.
Osaka is also currently No 1 in the WTA rankings, but she wrote on Twitter: “Hey everyone, I will no longer be working together with Sascha. I thank him for his work and wish him all the best in the future.”