Rafael Nadal beat Leonardo Mayer in straight sets on Thursday to reach the semifinals of the Mexican Open, setting up a meeting with Spanish compatriot Nicolas Almagro.
Nicolas Almagro has withdrawn from Spain's Davis Cup first-round tie against Canada because of an injury.
Spain will open the Davis Cup against Canada without injured star Rafael Nadal or regular member David Ferrer.
The top seed stayed clothed after beating Tomas Berdych 6-1, 4-6, 6-1, 6-4 Tuesday to reach the semifinals in about half the time it took him to win his previous match against Stanislas Wawrinka, which prompted a shirt-ripping celebration.
Fifth-seeded Angelique Kerber has been ousted in the fourth round of the Australian Open by the woman who defeated Serena Williams at the same stage last year.
Agnieszka Radwanska extended the best winning streak of the year to 11 matches as she rolled into the third round of the Australian Open with a 6-3, 6-3 win over Romania's Irina-Camelia Begu on Wednesday.
Top-ranked Novak Djokovic routed David Ferrer 6-0, 6-3 on Friday to reach the final of the World Tennis Championship exhibition tournament.
It's a job for two when the Czechs win Davis Cup finals.
David Ferrer kept alive Spain's hopes of winning a fourth Davis Cup title in five years by beating Tomas Berdych of the Czech Republic in the first reverse singles match Sunday to even the final at 2-2.