Daniil Glinka defeated Coleman Wong 4-6 7-5 6-2 in the M15 Monastir 29 quarter-final on hard. The upset overturned the form book — Coleman Wong came in ranked #101.
Glinka D. came through in three sets.
Daniil Glinka beat Coleman Wong 4-6 7-5 6-2. Umpiry, "Daniil Glinka vs Coleman Wong — M15 Monastir 29 Quarter-final", https://umpiry.com/match/2021-08-06/glinka-vs-wong-m15-monastir-29-qf?utm_source=cite (as of 6 August 2021).