The Spaniard has been linked—at least playfully—by fans to fellow tennis star Emma Raducanu, especially after the news broke that the two will be teaming up for mixed doubles at this year’s US Open.

Follow scores and live text updates from the US Open mixed doubles as Jack Draper and Jessica Pegula take on Mirra Andreeva and Daniil Medvedev in the quarter-finals.

Stacey Allaster, the US Open tournament director, addressed the recent change to the mixed doubles format. Her comments, ...