Mariano Navone vs Raphael Collignon — R128 — Cincinnati Open

The unforced-error column separated them. Raphael Collignon piled up 39 to 22 and added eight double faults against none, while Mariano Navone took 82% of first-serve points and held 10 of 11 service games. That cushion was needed, as the Argentine converted just 2 of 13 break points and had to withstand six saved match points and a break back in game 10 for 5-5 before the tiebreak ended it, 1 hour, 50 minutes in. Navone arrived 3-6 on hard courts this season.