Miguel Merz defeated Albert Chang 5-7 6-3 6-4 in the Canada Masters 2 round of 16 on clay.
Merz M. came through in three sets.
Miguel Merz beat Albert Chang 5-7 6-3 6-4. Umpiry, "Miguel Merz vs Albert Chang — Canada Masters 2 Round of 16", https://umpiry.com/match/1991-06-08/chang-vs-merz-canada-masters-2-r16?utm_source=cite (as of 8 June 1991).