Emma Navarro and Tommy Paul have withdrawn from the re-imagined U.S. Open mixed doubles event, causing ripple effects throughout the 16-duo competition.

Eleventh-ranked Navarro, who has suffered a pair of second-round losses and one first-round exit during the U.S. hard court season, has decided to compete in the WTA 500 event in Monterrey next week.

No. 16 Paul is just returning from injury and will take the week to get ready for singles competition in Flushing Meadows.

The newly-formatted mixed doubles tournament will be played on Aug. 19-20 at the USTA Billie Jean King National Tennis Center, with $1 million in prize money going to the winning tandem.

Navarro was slated to play with top-ranked Jannik Sinner, who must find a replacement by Sunday, Aug. 17 at 2:00 p.m. or withdraw fro

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