Brydan Klein defeated Dusan Lajovic 4-6 6-1 6-2 in the US Open qualifying round of 128 on hard. The upset overturned the form book — Dusan Lajovic came in defending last year's round of 128.
Klein B. came through in three sets.
Brydan Klein beat Dusan Lajovic 4-6 6-1 6-2. Umpiry, "Brydan Klein vs Dusan Lajovic — US Open Qualifying Round of 128", https://umpiry.com/match/2015-08-25/klein-vs-lajovic-us-open-q128?utm_source=cite (as of 25 August 2015).