Frances Tiafoe vs Felix Auger-Aliassime — R16 — Cincinnati Open

Second-seeded Auger-Aliassime put 100 percent of his first serves in play, hit 13 aces and struck 28 winners to six, and lost anyway, a 66 percent favorite with the betting market at the Cincinnati Open. The second delivery undid all of it, as he won 8 of 25 points behind it and paired those winners with 37 unforced errors. Tiafoe hunted that ball all night, taking 17 of 25 second-serve return points, with breaks in game 3 for 2-1 and again in game 5 for 4-1. The ATP No. 4 saved five match points before it ended at 1 hour 40 minutes; the 17th seed is into the quarterfinals having dropped one set all week, and 2-0 against him on record.