Alexander Donski defeated Erik Crepaldi 7-6 5-7 6-4 in the M15 Monastir 16 quarter-final on hard. The upset overturned the form book — Erik Crepaldi came in leading the head-to-head 1–0. Alexander Donski claimed a first win over Erik Crepaldi in two meetings, levelling the head-to-head at 1–1.
Donski A. came through in three sets.
Hard: Donski A. leads 1–0 · Clay: Crepaldi E. leads 1–0
Alexander Donski beat Erik Crepaldi 7-6(6) 5-7 6-4. Umpiry, "Alexander Donski vs Erik Crepaldi — M15 Monastir 16 Quarter-final", https://umpiry.com/match/2021-05-07/crepaldi-vs-donski-m15-monastir-16-qf?utm_source=cite (as of 7 May 2021).