The radical change to the event with the aim of attracting the big-name players usually missing from grand slam doubles has been successful but controversial.

Emma Raducanu and Carlos Alcaraz might have lost in the revamped US Open mixed doubles - but they certainly won the hearts of the New York crowd.

The match improved in quality as the brand-new pairings settled in, but it was Draper and Pegula who formed a smoother partnership.