Jacco Van Duyn advanced when Yann Lefebvre retired 7-6 3-0 in the Canada Masters 2 round of 16.
Van Duyn J. advanced when Lefebvre Y. retired.
Jacco Van Duyn beat Yann Lefebvre 7-6 3-0 after Yann Lefebvre retired. Umpiry, "Jacco Van Duyn vs Yann Lefebvre — Canada Masters 2 Round of 16", https://umpiry.com/match/1991-06-08/duyn-vs-lefebvre-canada-masters-2-r16?utm_source=cite (as of 8 June 1991).