David Nainkin defeated John Sullivan 6-4 7-6 in the USA 3 Masters 1 round of 64 on hard.
Nainkin D. took it in straight sets.
David Nainkin beat John Sullivan 6-4 7-6. Umpiry, "David Nainkin vs John Sullivan — USA 3 Masters 1 Round of 64", https://umpiry.com/match/1992-06-01/nainkin-vs-sullivan-usa-3-masters-1-r64?utm_source=cite (as of 1 June 1992).