Juan Sebastian Cabal defeated Michael Quintero 6-1 4-6 6-4 in the Bolivia F1 round of 32 on clay. The upset overturned the form book — Michael Quintero came in leading the head-to-head 2–0. Juan Sebastian Cabal claimed a first win over Michael Quintero in three meetings, narrowing the head-to-head to 2–1.
Cabal J. came through in three sets.
Juan Sebastian Cabal beat Michael Quintero 6-1 4-6 6-4. Umpiry, "Juan Sebastian Cabal vs Michael Quintero — Bolivia F1 Round of 32", https://umpiry.com/match/2006-09-11/cabal-vs-quintero-bolivia-f1-r32?utm_source=cite (as of 11 September 2006).