Naomi Osaka is left without a coach after the failure of the US Open

The tennis player, 21 years old and with dual nationality, Haitian and Japanese, He made the announcement in a message spread on Twitter.

"Jay and I will stop working together. I'm super grateful for the time we spent together and everything I've learned on and off the track, "Osaka announced.

The tennis player, who currently ranks fourth in the WTA World Rnking, He added that it is the "appropriate" time for a change, although he does not anticipate how to replace Jenkins.

Osaka was out of the past US Open in the round of eighths, losing to the Swiss Belinda Bencic. In the edition of last year of that same tournament Osaka had proclaimed champion.

That defeat in New York made Osaka lost first place in the WTA rnking, now headed by Australian Ashleigh Barty.

Jenkins had joined Osaka's team last February after the tennis player, a Haitian father and a Japanese mother, became the number 1 of the WTA after winning the Australian Open.

But after starting to work with him, Osaka has failed to reach any of the finals of the Grand Slam tournaments.

Osaka, who plays in international competitions with Japanese nationality, I had hired Jenkins after dispensing with the German Sascha Bajin, I accompanied her for thirteen months.