Stefan Kozlov defeated Grigor Dimitrov 7-6 5-7 6-3 in the Acapulco round of 32 on hard. The upset overturned the form book — Grigor Dimitrov came in ranked #127, defending last year's quarter-final.
Kozlov S. came through in three sets.
Stefan Kozlov beat Grigor Dimitrov 7-6 5-7 6-3. Umpiry, "Stefan Kozlov vs Grigor Dimitrov — Acapulco Round of 32", https://umpiry.com/match/2022-02-21/dimitrov-vs-kozlov-acapulco-r32?utm_source=cite (as of 21 February 2022).