ATP Joao Fonseca ATP Cincinnati 2026

Joao Fonseca withdraws from Cincinnati and raises doubts ahead of the US Open

Fernando Murciego - 18 Aug 2026
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Joao Fonseca withdraws from Cincinnati and raises doubts ahead of the US Open. Source: Getty

Joao Fonseca will not be able to continue his journey in the Masters 1000 in Cincinnati, a devastating piece of news we received almost at the end of this latest day. The 19-year-old Brazilian has announced his withdrawal from the American tournament after feeling discomfort on the left side of his abdomen during one of his training sessions. This decision comes at an important moment of the season for one of the great promises of world tennis.

Fonseca was scheduled to face Christopher O’Connell this Wednesday in the first match, but he will ultimately not be able to play. The man who has generated huge expectations since his emergence on the professional circuit has preferred not to take risks in light of discomfort that could worsen if he continues competing. For now, no further information has been provided regarding the exact nature of the physical issue or the expected timeline for his recovery.

Fonseca's withdrawal also presents an unexpected opportunity for O’Connell. The Australian advances automatically to the tournament's round of 16 thanks to this withdrawal, after Casper Ruud was also forced to exit the competition. In this way, O’Connell finds himself in an unusual situation at a Masters 1000, reaching an advanced round without needing to complete a match in this phase of the draw.

This news represents a slight setback for Fonseca, who approached Cincinnati with the intention of continuing to gain experience and results against some of the best players in the world. At just 19, the Brazilian continues to make strides in his development, although physical discomfort is becoming a factor he must carefully monitor in an increasingly demanding schedule. It remains to be seen whether the abdominal issue will allow him to be available for the US Open. Fonseca's priority will be to regain his good sensations and prevent what appears to be a momentary discomfort from turning into a more significant injury.

This is an automatic translation. You can read the original news, Joao Fonseca se baja de Cincinnati y siembra dudas de cara al US Open