Sinner stays perfect and Fritz also advances to the semifinals at the ATP Finals
Sinner and U.S. Open finalist Taylor Fritz advanced to the semifinals on Thursday at the season-ending tournament for the year's top eight players. Sinner won the round-robin group after a 6-3, 6-4 victory over 2020 champion Daniil Medvedev; and Fritz advanced in second after rallying past Alex de Minaur 5-7, 6-4, 6-3.