Wild-card Joao Souza of Brazil claimed an upset 7-5, 6-4 win over fifth-seeded Robin Haase of the Netherlands on Monday in the first round of the clay-court Brazil Open.
Top-seeded Rafael Nadal reached the semifinals of the Rio Open, showing no problems with a sore back in defeating Joao Sousa of Portugal 6-1, 6-0 on Friday.
Top-seeded David Ferrer and No. 2 Fabio Fognini of Italy will contest the final of the Copa Claro in the Argentine capital.
Two-time defending champion and top-seeded David Ferrer of Spain defeated Santiago Giraldo of Colombia 6-4, 7-6 (1) on Thursday to reach the quarterfinals of the Copa Claro clay-court tournament.
Top-seeded David Ferrer of Spain defeated Maximo Gonzalez of Argentina 7-6 (7), 6-4 Tuesday to reach the second round of the Copa Claro clay-court tournament.
Third-seeded Tommy Robredo reached the second round of the Copa Claro clay court tournament with a 6-4, 6-4 win over fellow-Spaniard Pablo Carreno Busta on Monday.
Top-seeded Fabio Fognini of Italy defeated Argentina's Leonardo Mayer 6-2, 6-4 on Sunday to win the Royal Guard Open clay-court tournament.
The WTA's Brussels Open has folded after three years because it has become too expensive to stage.
The first-round Davis Cup match between Britain and the United States will be played on a clay court in left field at Petco Park from Jan. 31-Feb. 2.
Tommy Robredo won the Croatia Open clay-court event Sunday, beating Fabio Fognini of Italy 6-0, 6-3 for his 12th career title and second this year.
Sergiy Stakhovsky lost his fourth straight match since beating Roger Federer at Wimbledon, falling in the first round of the Swiss Open on Monday.
Fabio Fognini rallied to beat second-seeded Philipp Kohlschreiber of Germany 5-7, 6-4, 6-4 in the final of the ATP Mercedes Cup on Sunday for his first career title.
Carlos Berlocq upset eighth-seeded Fernando Verdasco to win the clay-court Swedish Open 7-5, 6-1 on Sunday for his first ATP Tour title.
Fernando Verdasco and Carlos Berlocq will play for the Swedish Open title Sunday.
Roger Federer will play this month at the German championships in Hamburg, adding a second ATP tournament to his unexpected clay-court schedule in July.
Roger Federer will try to move on from his stunning Wimbledon loss by playing at the clay-court Swiss Open, where he debuted as a 16-year-old.