Paul Haarhuis defeated Jerome Potier 6-3 6-4 in the Philadelphia round of 64 on hard.
Haarhuis P. took it in straight sets.
Paul Haarhuis beat Jerome Potier 6-3 6-4. Umpiry, "Paul Haarhuis vs Jerome Potier — Philadelphia Round of 64", https://umpiry.com/match/1990-02-19/haarhuis-vs-potier-philadelphia-r64?utm_source=cite (as of 19 February 1990).