Matheson Klein defeated Alexandre Schnitman 4-6 7-6 6-3 in the Mexico F2 round of 16 on hard. The upset overturned the form book — Alexandre Schnitman came in leading the head-to-head 1–0, but Matheson Klein had been the form player, winning 2 of their last 4 on hard. Matheson Klein claimed a first win over Alexandre Schnitman in two meetings, levelling the head-to-head at 1–1.
Klein M. came through in three sets.
Matheson Klein beat Alexandre Schnitman 4-6 7-6(2) 6-3. Umpiry, "Matheson Klein vs Alexandre Schnitman — Mexico F2 Round of 16", https://umpiry.com/match/2013-01-28/klein-vs-schnitman-mexico-f2-r16?utm_source=cite (as of 28 January 2013).