Home-country favorite Nuno Borges upset No. 3 seed Lorenzo Musetti of Italy 7-6(4), 6-3 to advance to the quarterfinals of the Millennium Estoril Open in Estoril, Portugal, on Thursday.

Borges, who is seeking his first ATP Tour win, saved two set points serving at 5-6 in the first set during the one-hour, 37-minute match on clay courts. Down 3-1 to open the match, Borges rallied to set up the tiebreaker.