Fifth seed Andy Roddick advanced to the third round of the U.S. Open when his Argentine opponent Jose Acasuso retired with a left knee injury at the end of the third set on Thursday.
The 24-year-old ended a four-year title drought to claim his second ATP crown. He also beat Acasuso in the Bucharest final in 2002.
Mahesh Bhupathi and Mark Knowles of the Bahamas bowed out in the pre-quarter-finals of the men's doubles at the French Open, losing a tough three-setter to unseeded Jose Acasuso of Argentina and Fernando Gonzalez of Chile.
Top-seed David Nalbandian beat compatriot Jose Acasuso in the Buenos Aires Open final to collect his eighth career title.
The top seed was dumped out of the Barcelona Open by Argentine Jose Acasuso in straight sets.
The last time Argentina met Spain in the Davis Cup, in the 2008 final in Mar del Plata, the South Americans were firm favourites to claim their first title but their challenge was wrecked by infighting within the team.
A racket-smashing Andy Roddick was shocked 6-4, 4-6, 6-4 by 19-year-old Croat Marin Cilic in the third round of the Toronto Masters on Thursday. Rafael Nadal and defending champion Novak Djokovic however eased into the last eight.
Rohan Bopanna erased a one-set deficit to upset world No 51 Jose Acasuso and advance to the second round of the Malaysian Open while compatriot Somdev Devvarman made an early exit from the Thailand Open, losing his first round.
Roger Federer may be recently married and a new father to twin girls, but nothing can distract the Swiss 15-time grand slam champion from the business of being the world's top-ranked player.
Spain overcame the absence of world number one Rafael Nadal to clinch the Davis Cup on Sunday when Fernando Verdasco beat Jose Acasuso to give them a 3-1 win over Argentina in the final. Verdasco, brought in to replace Spain's off-form number one David Ferrer, won 6-3, 6-7, 4-6, 6-3, 6-1 to hand Argentina their third defeat in three final appearances and their first home loss for 10 years.
Indian Davis Cupper Mahesh Bhupathi and Mark Knowles cruised into the finals of the euro 891,000 ATP Swiss Indoor tournament, defeating Argentine pair Jose Acasuso and Agustin Calleri in straight sets in Basel on Saturday.
The unseeded Indo-Belgian pair beat the Argentine duo of Jose Acasuso and Sebastian Prieto in the men's doubles at the French Open.
The Indo-Czech pair lost to second seeds Jonas Bjorkman and Max Mirnyi in the second round in Monte Carlo.
Marat Safin beat Jose Acasuso in a nerve-racking fifth and decisive rubber as Russia beat Argentina 3-2 in final.
Ivan Ljubicic and Gaston Gaudio were the biggest casualties in second-round matches at the Hamburg Masters
Spain's Fernando Verdasco won the first ATP hard-court title of his career with a 6-4, 7-6 victory over American Sam Querrey in the New Haven Open on Saturday, just hours after he had won his semi-final.
Roger Federer was lucky to keep alive his dream of winning a maiden Roland Garros crown and Venus Williams used a good night's sleep to spare herself from a French Open nightmare in the second round on Thursday.
Roger Federer survived a bumpy ride to beat claycourt specialist Argentine Jose Acasuso 7-6, 5-7, 7-6, 6-2 to reach the third round of the French Open on Thursday.
Third and fourth seeds Nikolay Davydenko and Guillermo Coria were eliminated in the Madrid Masters.
Gaston Gaudio beat Alberto Martin in straight sets to set up an all-Argentine final against wildcard Mariano Puerta in the Buenos Aires Open.
The double Olympic gold medallist whipped Jose Acasuso of Argentina for the loss of just six games at the US Open.
Roger Federer was back to his best on Tuesday to reach the last eight at the Sony Ericcson Open with a 7-6, 6-2 win over Jose Acasuso.