Pierre Bouteyre defeated Filippo Grasso 6-1 7-5 in the Brazil 2 Masters 2 round of 16 on clay.
Bouteyre P. took it in straight sets.
Pierre Bouteyre beat Filippo Grasso 6-1 7-5. Umpiry, "Pierre Bouteyre vs Filippo Grasso — Brazil 2 Masters 2 Round of 16", https://umpiry.com/match/1991-04-15/bouteyre-vs-grasso-brazil-2-masters-2-r16?utm_source=cite (as of 15 April 1991).