Daniel Santos defeated Gustavo Sterin 6-2 4-6 6-3 in the Peru F1 round of 32 on clay.
Santos D. came through in three sets.
Daniel Santos beat Gustavo Sterin 6-2 4-6 6-3. Umpiry, "Daniel Santos vs Gustavo Sterin — Peru F1 Round of 32", https://umpiry.com/match/2012-05-21/santos-vs-sterin-peru-f1-r32?utm_source=cite (as of 21 May 2012).