Justin Engel vs Ugo Humbert — R32 — Hamburg Open

Four hours and twelve minutes of attrition, and Ugo Humbert survived it on the strength of his serve when the rallies stopped breaking his way. The Frenchman won 84% of his first-serve points (43 of 51) and fired 12 aces to Engel's three — enough to offset a return game that converted just 1 of 8 break chances. Teenager Justin Engel was the more efficient on the chances he got, taking 1 of 4 break points and grabbing the middle set 6-3, but his 48 unforced errors to Humbert's 32 told in the third-set tiebreak, which Humbert closed 7-2 after the breaker reached 7-all. First meeting between the two, first on clay; Humbert leads 1-0.