Boris Becker defeated Paul Haarhuis 6-1 6-2 6-1 in the Australian Open round of 128 on hard.
Becker B. took it in straight sets.
Boris Becker beat Paul Haarhuis 6-1 6-2 6-1. Umpiry, "Boris Becker vs Paul Haarhuis — Australian Open Round of 128", https://umpiry.com/match/1990-01-15/becker-vs-haarhuis-australian-open-r128?utm_source=cite (as of 15 January 1990).