Brian Dabul defeated Matias Oneille 6-3 4-6 7-5 in the Argentina F1 round of 16 on clay. The upset overturned the form book — Matias Oneille came in leading the head-to-head 1–0. Brian Dabul claimed a first win over Matias Oneille in two meetings, levelling the head-to-head at 1–1.
Dabul B. came through in three sets.
Brian Dabul beat Matias Oneille 6-3 4-6 7-5. Umpiry, "Brian Dabul vs Matias Oneille — Argentina F1 Round of 16", https://umpiry.com/match/2006-03-13/dabul-vs-oneille-argentina-f1-r16?utm_source=cite (as of 13 March 2006).