Shuzo Matsuoka defeated Felipe Rivera 6-3 6-2 in the Bologna round of 32 on clay.
Matsuoka S. took it in straight sets.
Shuzo Matsuoka beat Felipe Rivera 6-3 6-2. Umpiry, "Shuzo Matsuoka vs Felipe Rivera — Bologna Round of 32", https://umpiry.com/match/1991-05-20/matsuoka-vs-rivera-bologna-r32?utm_source=cite (as of 20 May 1991).