The Czech Republic's Tomas Berdych beat Spain's Nicolas Almagro in a four-hour five-setter to tie the Davis Cup final at 1-1 after day one.
Novak Djokovic saved a match point in the third set against Tomas Berdych before winning 3-6, 6-3, 7-6 (3) at the ATP finals.
Roger Federer has cast aside bad memories of his US Open defeat to Argentina's Juan Martin Del Potro by beating him 6-3 7-5 at the Cincinnati Open.
Czech Tomas Berdych stunned second seed Andy Roddick 6-7, 7-5, 7-6 to reach to the final of the Japan Open on Saturday.
Maria Sharapova almost became the first women's top seed in French Open history to lose in the opening round on Wednesday as Rafael Nadal showed her the way to master a Roland Garros sandstorm. Russian golden girl Sharapova toiled for two-and-a-half hours before squeezing past teenage compatriot and world number 104 Evgeniya Rodina 6-1, 3-6, 8-6.
Top seed Rafael Nadal was stunned 3-6 6-3 6-4 by Italian Andreas Seppi in one of series of second-round upsets at the World Indoor Tournament on Thursday. Second seed Nikolay Davydenko of Russia, third seeded Spaniard David Ferrer and fifth seed Tomas Berdych of the Czech Republic also suffered early exits.
Defending champions America and France, two of the most successful countries in Davis Cup history, will clash in this year's quarterfinals after cruising through their World Group first-round ties. The United States, the 31-time champions, saw off Austria 3-0 while nine-time winners France also opened up a 3-0 lead over Romania.
A bullish mood is spreading among his rivals that dominating world number one Roger Federer is beatable coming into the showpiece rounds of the Australian Open. The Swiss top seed, the winner of 12 Grand Slam titles, second only to Pete Sampras's 14, has ruled men's tennis for four years and has been a constant in the last 10 Major finals.
It was back to business as usual for Roger Federer on Monday as he clinically moved into an Australian Open quarterfinal against James Blake, with Venus Williams also working up a head of steam. The world number one rebounded from his uncharacteristic five-set scare in the third round to resume his sprint towards a 13th Grand Slam title.
Swiss top seed Roger Federer recovered from his major scare in the previous round to cruise into the quarterfinals of the Australian Open with a straight sets victory over Tomas Berdych on Monday. The 12-time Grand Slam champion overcame the Czech 13th seed, 6-4, 7-6 (9/7), 6-3 in one hour 59 minutes.
A rattled Roger Federer was given a major scare in a five-set epic at the Australian Open on Saturday, but he avoided the fate of number-two seed Svetlana Kuznetsova who skidded out of the tournament. Other casualties included women's sixth seed Anna Chakvetadze and men's seventh seed Fernando Gonzalez.
Roger Federer stepped up his unrelenting charge towards a third successive Australian Open title with an emphatic win on Thursday, but Venus Williams had to dig deep to reach the third round. The Fed Express, chasing a 13th Grand Slam title, crushed wily Frenchman Fabrice Santoro, playing in a record 62nd Major tournament, 6-1, 6-2, 6-0.
It will be the year of the Golden Slam for tennis in 2008 and realistically only two names are in the running. Both Roger Federer and Justine Henin finished this year as clear number ones in their sport and they are set to dominate again. But from there to winning all four Grand Slams events plus Olympic gold in Beijing in the same calendar year is a huge step.
The United States and Germany each won their doubles matches on Friday to move within one point of reaching the Davis Cup final. Top-ranked doubles team Bob and Mike Bryan gave the US a 2-1 lead at Sweden by beating Simon Aspelin and Jonas Bjorkman 7-6 (11), 6-2, 6-3.
World number one Roger Federer answered the threat of big-serving United States giant John Isner to join top challengers Andy Roddick, Nikolay Davydenko and James Blake in the US Open fourth round on Saturday. Federer is trying for a 12th grand-slam crown and fourth US Open title in a row.