Mats Wilander defeated David Wheaton 6-4 6-3 in the Memphis round of 32 on hard.
Wilander M. took it in straight sets.
Mats Wilander beat David Wheaton 6-4 6-3. Umpiry, "Mats Wilander vs David Wheaton — Memphis Round of 32", https://umpiry.com/match/1991-02-18/wheaton-vs-wilander-memphis-r32?utm_source=cite (as of 18 February 1991).