Martin Sinner defeated Yong Il Yoon 6-0 6-7 6-4 in the China F1 qualifying round on hard.
Sinner M. came through in three sets.
Martin Sinner beat Yong Il Yoon 6-0 6-7(5) 6-4. Umpiry, "Martin Sinner vs Yong Il Yoon — China F1 Qualifying Round", https://umpiry.com/match/2000-04-24/sinner-vs-yoon-china-f1-qf?utm_source=cite (as of 24 April 2000).