Mario Rincon defeated John Laffnie De Jager 6-4 6-4 in the USA 2 Masters 2 round of 64 on hard.
Rincon M. took it in straight sets.
Mario Rincon beat John Laffnie De Jager 6-4 6-4. Umpiry, "Mario Rincon vs John Laffnie De Jager — USA 2 Masters 2 Round of 64", https://umpiry.com/match/1991-04-29/jager-vs-rincon-usa-2-masters-2-r64?utm_source=cite (as of 29 April 1991).