An ongoing wrist injury has forced him to sit yet another event out.
Carlos Alcaraz has pulled out of the Cincinnati Open due to start later this month.
The move has cast further doubt over whether he'll be able to defend his US Open title.
An ongoing wrist injury has forced the Spaniard to sit out another warm-up event.
The seven-time grand slam champion has not played since April abd was unable to defend his French Open title while he also missed Wimbledon.

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