Joseph Sirianni defeated Tate Roberts 6-3 6-3 in the Australia 2 Masters 2 round of 32 on hard. The upset overturned the form book — Tate Roberts came in leading the head-to-head 1–0. Joseph Sirianni claimed a first win over Tate Roberts in two meetings, levelling the head-to-head at 1–1.
Sirianni J. took it in straight sets.
Joseph Sirianni beat Tate Roberts 6-3 6-3. Umpiry, "Joseph Sirianni vs Tate Roberts — Australia 2 Masters 2 Round of 32", https://umpiry.com/match/1999-05-08/roberts-vs-sirianni-australia-2-masters-2-r32?utm_source=cite (as of 8 May 1999).