Yann Lefebvre advanced when Jean Francois Mathieu retired 7-6 6-7 3-1 in the Canada Masters 1 round of 32.
Lefebvre Y. advanced when Mathieu J. retired.
Yann Lefebvre beat Jean Francois Mathieu 7-6 6-7 3-1 after Jean Francois Mathieu retired. Umpiry, "Yann Lefebvre vs Jean Francois Mathieu — Canada Masters 1 Round of 32", https://umpiry.com/match/1992-10-12/lefebvre-vs-mathieu-canada-masters-1-r32?utm_source=cite (as of 12 October 1992).