Jiri Lehecka vs Arthur Fils — R32 — Cincinnati Open

Seeded ninth and ranked a dozen places above his opponent, Lehecka came in as the betting market's underdog anyway, with 10Bet pricing Fils at 58 percent. The return games settled it: Fils took five of his nine break points to Lehecka's one of four, and held 14 of 15 times. The third set ran the same pattern in miniature — Lehecka's break in game 5 for 2-3 lasted one game before Fils broke back in game 6 for 4-2. The ninth seed saved two match points; the 21st seed closed it out in 1h 53m, nudging ahead in a series that stood 2-2 on record and booking a meeting with De Minaur, No. 7 at the time.