Guillermo Canas, once a nemesis to Roger Federer, has announced his retirement from tennis.
Guillermo Canas of Argentina beat 2008 Wimbledon junior champion Grigor Dimitrov of Bulgaria 6-3, 7-6 (2) the first round of the Swedish Open.
Guillermo Canas of Argentina, ranked 113th in the world, defeated top-seeded James Blake 6-4, 6-4 in the U.S. Men's Clay Court Championships.
Stefan Koubek of Austria beat American Bobby Reynolds 6-4, 6-3 in the first round of the Delray Beach International Tennis Championships.
Jose Acasuso replaced off-form Guillermo Canas as Argentina named its team for the Davis Cup final at home to Spain later this month.
Russia stayed alive in their Davis Cup semifinal against Argentina on Saturday when Igor Kunitsyn and Dmitry Tursunov won the doubles despite a brave fightback by David Nalbandian and Guillermo Canas.
Hometown favorite Stanislas Wawrinka beat Guillermo Canas of Argentina 4-6, 6-4, 7-6 (2) Friday to advance to the semifinals of the Allianz Suisse Open.
Igor Andreev beat Marcos Daniel of Brazil 6-4, 7-5 in an opening round match at the Swiss Open.
Second-seeded Tommy Robredo reached the Warsaw Open quarterfinals Thursday after Wayne Odesnik retired while trailing 6-4, 1-1.
Roger Federer got by one of his most challenging opponents, defeating Guillermo Canas 6-3, 6-3 Tuesday in the second round of the Rome Masters.
Ninth-seeded Guillermo Canas of Argentina beat Spain's Oscar Hernandez 6-1, 6-4 in the first round of the Barcelona Open on Monday.
Fourth-seeded Guillermo Canas of Chile remained the lone seeded player left in the Tennis Channel Open on Friday, beating American qualifier Amer Delic 6-4, 6-4 to reach the semifinals.
Guillermo Canas defeated Carlos Berlocq 6-4, 6-7 (5), 6-4 Tuesday to advance to the second round of the Mexican Open.
Defending champion Roger Federer was at his best as he crushed Argentine Guillermo Canas 6-0, 6-3 to take his place in the quarterfinals of the Madrid Masters on Thursday.
Andy Murray overcame second seed Guillermo Canas of Argentina 7-6, 6-4 on Saturday to reach the Metz Open final.
Andrei Pavel of Romania advanced to the finals of the Croatia Open on Saturday by defeating Serbian qualifier Viktor Troicki 6-3, 6-3.