The fourth seed Gauff outlasted eighth seed Qinwen Zheng in the Italian Open semifinal: 7-6 (3), 4-6, 7-6 (4). Gauff won both tiebreaks in the marathon match, which ran just over 3.5 hours.

Tommy Paul will have wondered what on earth he can do to stop Sinner if the Italian brings that form to Friday's last-four ...