Luis Lobo defeated Lucas Arnold Ker 6-4 6-2 in the Argentina 3 Masters 4 qualifying round on clay. The upset overturned the form book — Lucas Arnold Ker came in leading the head-to-head 2–0. Luis Lobo claimed a first win over Lucas Arnold Ker in three meetings, narrowing the head-to-head to 2–1.
Lobo L. took it in straight sets.
Luis Lobo beat Lucas Arnold Ker 6-4 6-2. Umpiry, "Luis Lobo vs Lucas Arnold Ker — Argentina 3 Masters 4 Qualifying Round", https://umpiry.com/match/1993-08-14/ker-vs-lobo-argentina-3-masters-4-qf?utm_source=cite (as of 14 August 1993).