Fifth-seeded Mikhail Kukushkin of Kazhakhstan was upset in the first round of the Swedish Open on Tuesday, while No. 7 Filippo Volandri of Italy advanced in straight sets.
Rafael Nadal and Andy Murray cruised into the Barcelona Open quarterfinals with straight-set victories on Thursday.
Seven-time defending champion Rafael Nadal and top-ranked Novak Djokovic began their clay-court seasons with comfortable wins in the second round of the Monte Carlo Masters on Wednesday.
Novak Djokovic opened his bid for a third BNP Paribas Open championship by topping qualifier Andrey Golubev of Kazakhstan 6-3, 6-2 on Saturday.
Robby Ginepri became the first American to win his way into the second round of the BNP Paribas Open by beating Paoli Lorenzi of Italy 1-6, 6-3, 6-4 on Thursday.
Seventh-seeded Albert Montanes of Spain lost to Filippo Volandri of Italy in the first round of the Brazil Open on Monday.
Top seed Juan Monaco of Argentina beath fifth-seeded Albert Montanes of Spain 3-6, 6-1, 6-1 Friday to reach the semifinals of the Vina Del Mar VTR Open.
Frederico Gil of Portugal upset fourth-seeded Pablo Andujar of Spain 6-2, 6-1 in the second round of the Vina del Mar VTR Open on Wednesday.
Carlos Berlocq of Argentina defeated Daniel Gimeno-Traver of Spain 7-5, 6-0 on Tuesday to reach the second round of the Vina Del Mar VTR Open.
Defending champion Novak Djokovic was nearly flawless in a 6-0, 6-1, 6-1 win against Frenchman Nicolas Mahut in a third-round match Saturday at the Australian Open.
Joao Souza of Brazil upset fifth-seeded Tommy Robredo of Spain 6-4, 7-6(5) on Monday in the first round of the Nastase Tiriac Trophy.
No. 2 seed Jurgen Melzer was upset in the second round of the Winston-Salem Open.
Second-seeded Stanislas Wawrinka advanced to the quarterfinals of his home Swiss Open tournament, beating Peter Luczak of Australia 6-3, 7-5.
Feliciano Lopez beat Mardy Fish, earning Spain a key singles victory over the United States in the Davis Cup quarterfinals.
Roger Federer says it's good for tennis that Novak Djokovic won Wimbledon and became the top-ranked player.
Second-seeded Fernando Verdasco overcame a late rally by Frederico Gil for a 6-1, 7-6 (5) victory Thursday, advancing to the quarterfinals at the Estoril Open.