Monday's second set of fourth-round matches at the US Open in New York will feature Carlos Alcaraz and Ons Jabeur.
Alcaraz, the defending men's champion and top seed, will compete against Italian Matteo Arnaldi, who is unseeded.
The fifth seed and last year's runner-up in the women's singles, Jabeur, will take on the 23rd seed from China, Qinwen Zheng.