Osaka changes coach for second time this year

Japanese tennis superstar Naomi Osaka announced yesterday she was splitting with her coach, her second break-up this year as she battles for form and slips down the world rankings. On the eve of the Pan Pacific Open tournament in Osaka, western Japan, the 21-year-old announced she would no longer be working with Jermaine Jenkins, who joined her team after her triumph at the Australian Open in January.

“Writing this to let you guys know that me and Jay won’t be working together anymore,” Osaka tweeted. “I’m super grateful for the time we spent together and the things I learned on and off the court but I feel like now is a (sic) appropriate time for a change... Thank you for everything, it was a blast,” added Osaka. Osaka had already caught the tennis world by surprise when she announced she was parting ways with coach Sascha Bajin, who had overseen her stunning rise to win two grand slams -- the US Open in 2018 and the Australian Open title in January.

But her results since Melbourne have been patchy. She lost in the third round of the French Open to Katerina Siniakova from the Czech Republic, ranked 41 places below her in the world rankings. She then suffered a humiliating first-round exit at Wimbledon to Yulia Putintseva from Kazakhstan before crashing out of this month’s US Open in the last 16 to Swiss player Belinda Bencic.

Her form outside the slams has hardly been better, losing two quarter-finals during the US hardcourt season that has seen her slip from the number one position in the world rankings to number four in the latest list.