Ivan Lendl defeated Paul Haarhuis 6-2 6-1 in the Memphis round of 16 on hard.
Lendl I. took it in straight sets.
Ivan Lendl beat Paul Haarhuis 6-2 6-1. Umpiry, "Ivan Lendl vs Paul Haarhuis — Memphis Round of 16", https://umpiry.com/match/1991-02-18/haarhuis-vs-lendl-memphis-r16?utm_source=cite (as of 18 February 1991).