The new Mixed Doubles format for the 2025 US Open has allowed more of the top singles players to participate in the event, and on Tuesday, Aug. 19 in New York, the Mixed Doubles tournament begins.

Jannik Sinner has pulled out of the U.S. Open mixed doubles tournament shortly before it was scheduled to begin.

The scheduling of the Cincinnati Open final on Monday has caused chaos ahead of the start of the new-look US Open mixed doubles event

Jannik Sinner has pulled out of the U.S. Open mixed doubles tournament shortly before it was scheduled to begin

Jannik Sinner has withdrawn from the U.S. Open mixed doubles event, where he was going to partner Katerina Siniakova, a day after illness forced the world number one to retire five games into his Cincinnati Open final.

Sinner had to forfeit his Cincinnati Open singles final against Carlos Alcaraz after five games due to illness.

With the revamped US Open mixed doubles starting on Tuesday, BBC Sport looks at the positives and negatives of the controversial change.

When it came to finding a partner for the newly formatted mixed doubles event at this year’s U.S. Open, it seemed like a no-brainer for Madison Keys.