Mike Briggs defeated John Sullivan 6-3 6-2 in the USA 3 Masters 1 round of 16 on hard.
Briggs M. took it in straight sets.
Mike Briggs beat John Sullivan 6-3 6-2. Umpiry, "Mike Briggs vs John Sullivan — USA 3 Masters 1 Round of 16", https://umpiry.com/match/1991-06-03/briggs-vs-sullivan-usa-3-masters-1-r16?utm_source=cite (as of 3 June 1991).