Yasufumi Yamamoto defeated Ryuso Tsujino 7-5 7-6 in the Australia 3 Masters 2 round of 32 on hard. The upset overturned the form book — Ryuso Tsujino came in leading the head-to-head 1–0. Yasufumi Yamamoto claimed a first win over Ryuso Tsujino in two meetings, levelling the head-to-head at 1–1.
Yamamoto Y. took it in straight sets.
Yasufumi Yamamoto beat Ryuso Tsujino 7-5 7-6. Umpiry, "Yasufumi Yamamoto vs Ryuso Tsujino — Australia 3 Masters 2 Round of 32", https://umpiry.com/match/1997-09-28/tsujino-vs-yamamoto-australia-3-masters-2-r32?utm_source=cite (as of 28 September 1997).