The weeklong confrontation between Naomi Osaka, the second-ranked woman in tennis, and leaders of the sport¡¯s four Grand Slam tournaments turned bitter Monday when Osaka withdrew from the French Open citing concerns for her mental health.

The move was a dramatic turn in the high-stakes standoff between the most powerful officials in tennis and Osaka. The 23-year-old is not only the world¡¯s highest paid female athlete but a generational star who has quickly become the most magnetic figure in tennis.

¡°I think now the best thing for the tournament, the other players and my well-being is that I withdraw so that everyone can get back to focusing on the tennis going on in Paris,¡± Osaka said in an Instagram post.