Andrey Rublev vs Nuno Borges — R32 — Cincinnati Open

Coming in, the 13th seed had won all four meetings on record against Borges, two of them on hard courts, and the betting market gave him a 59 percent edge. The 28-year-old was broken three times from the four chances he conceded and held just 6 of 9 service games. Two Borges breaks inside the first four games had the opener at 4-0, and the second set turned on a single break in game 5 for 3-2. It is a first win over Rublev on record for the 55th-ranked Portuguese, who won 31 of 39 first-serve points and is into the last 16 in a week that opened with two tiebreak sets against Kokkinakis.