Nicolas Almagro of Spain beat countryman Tommy Robredo 7-5, 6-1 on Saturday to reach the final of the Copa Claro clay-court tournament.
It will be Almagro's second final in as many weeks after winning the Brazil Open last week - also on clay.
Almagro played two matches on Saturday after rain washed out play the day before. In the quarterfinal match played earlier in the day, he defeated Argentina's Jose Acasuso 7-5, 6-3.
Robredo, who captured the Movistar Open title two weeks ago in Santiago, won his quarterfinal match over Argentina's David Nalbandian 6-4, 6-4.
''It's a special day to win two tough matches in a row,'' said Almagro, who improved to 3-0 in matches against Robredo. ''Tommy is a great player on clay and he had a lot of confidence coming in after winning in Santiago. As for me, I am playing very really well now, at a high level.''
No. 2 seed Stanislas Wawrinka of Switzerland was set to play Argentina's Juan Ignacio Chela in a late semifinal.
Earlier Saturday, Chela eliminated No. 4 seed Albert Montanes of Spain 6-4, 3-6, 6-3 and Wawrinka defeated No. 5 seed Juan Monaco of Argentina 7-5, 6-3 in quarterfinal matches.
