Rogerio Dutra Silva defeated Michael Quintero 6-2 6-2 in the Brazil F1 round of 16 on clay. The upset overturned the form book — Michael Quintero came in leading the head-to-head 2–0. Rogerio Dutra Silva claimed a first win over Michael Quintero in three meetings, narrowing the head-to-head to 2–1.
Dutra Silva R. took it in straight sets.
Rogerio Dutra Silva beat Michael Quintero 6-2 6-2. Umpiry, "Rogerio Dutra Silva vs Michael Quintero — Brazil F1 Round of 16", https://umpiry.com/match/2008-04-21/quintero-vs-silva-brazil-f1-r16?utm_source=cite (as of 21 April 2008).