Marcel Felder defeated Juan Sebastian Cabal 3-6 6-4 6-0 in the Colombia F4 semi-final on clay. The upset overturned the form book — Juan Sebastian Cabal came in leading the head-to-head 2–0. Marcel Felder claimed a first win over Juan Sebastian Cabal in three meetings, narrowing the head-to-head to 2–1.
Felder M. came through in three sets.
Marcel Felder beat Juan Sebastian Cabal 3-6 6-4 6-0. Umpiry, "Marcel Felder vs Juan Sebastian Cabal — Colombia F4 Semi-final", https://umpiry.com/match/2009-08-17/cabal-vs-felder-colombia-f4-sf?utm_source=cite (as of 17 August 2009).