Thiago Monteiro defeated Aleksandar Vukic 3-6 7-6 6-3 in the Australian Open qualifying round of 128 on hard. The upset overturned the form book — Aleksandar Vukic came in ranked #115.
Monteiro T. came through in three sets.
Thiago Monteiro beat Aleksandar Vukic 3-6 7-6(5) 6-3. Umpiry, "Thiago Monteiro vs Aleksandar Vukic — Australian Open Qualifying Round of 128", https://umpiry.com/match/2019-01-08/monteiro-vs-vukic-australian-open-q128?utm_source=cite (as of 8 January 2019).