The Croat easily beat Paradorn Srichaphan while Blake edged past Marat Safin in the semi-finals.
He beat Jiri Novak to hand the United States victory over the Czech Republic in the Hopman Cup.
All three advanced to the last 16 of the Australian Open with some style.
The United States will rely on the same quartet that won last year's Davis Cup when they face France in next month's quarter-final, captain Patrick McEnroe said on Thursday. Andy Roddick, James Blake, Bob Bryan and Mike Bryan will participate in their record tenth consecutive tie together, said McEnroe.
James Blake fought off two match-points to beat Paul-Henri Mathieu 7-6, 6-7, 6-3, 3-6, 7-5 and lifted the United States to a 2-0 lead over France in their Davis Cup quarter-final on Friday. Earlier in the day, Andy Roddick gave the US a 1-0 lead in a close 6-4, 7-6, 7-6 victory over Michael Llodra.
The world number one was the second big gun of the day to fall to an unseeded player at the Rome Masters after his Swiss compatriot Stanislas Wawrinka beat American James Blake.
James Blake beat Russian Mikhail Youzhny in the second singles after American No 1 Andy Roddick outclassed Dmitry Tursunov in the opening rubber.
World number six James Blake called on the ATP Tour to change the rules at round-robin tournaments after a bizarre 24 hours when he went out of the Las Vegas Open, was reinstated and then eliminated again.
World No 2 Rafael Nadal recovered from a slow start to beat compatriot Tommy Robredo and get his Masters Cup campaign back on track.
'If you have someone out there that's having this kind of rogue justice, they're tarnishing that image, and they don't deserve to be in the same sentence with the heroes of the NYPD, and they don't deserve to have that badge'
Twice champion James Blake came from behind to beat Finn Jarkko Nieminen 6-7 6-4 6-2 and book a place in the Stockholm Open semi-finals on Friday.
Mariano Zabaleta upset James Blake 7-5, 7-6 to advance to the final of the US Clay Court Championships.
The 28-year-old from Karvina broke the second-seeded American twice in the third set to seal victory in two hours 20 minutes at the Los Angeles Tennis Center.
The third seed won a topsy-turvy first set before easing through the second to capture his second title of the year and repeat his New Haven triumph of 2005.
US captain Patrick McEnroe said the duo would be joined by the world's top-ranked doubles pair, Bob and Mike Bryan. John Isner and Sam Querrey will travel with the team as practice partners.
New York City Police Commissioner William Bratton apologised on Thursday to former US tennis star James Blake, who was arrested after being wrongly identified as a suspect in a fraud ring and said he is concerned over how much force is used.
Jannik Sinner's stupendous year may have been clouded by an anti-doping controversy but on the court he is finishing the season like an express train and has won 25 of his last 26 matches.
Shrachi Rarh Bengal Tigers will play the Tamil Nadu Dragons in the first semi-final of the HIL on Friday, while JSW Soorma Hockey Club will take o Hyderabad Toofans in the second semi-final.
Novak Djokovic will miss next week's Miami Open after the Serbian was denied an exemption that would have allowed him to enter the US despite not being vaccinated against COVID-19.
Images from the Diamond League Finals at the King Baudouin Stadium in Brussels on Friday.
Eubanks is into his first Grand Slam quarter-final after beating fifth seed Stefanos Tsitsipas on Monday
The 81st Annual Golden Globes awards show saw Hollywood's swish set make a dazzling show on the red carpet.
The Australian actress took home her first-ever Emmy trophy, winning Outstanding Supporting Actress in a Drama Series for her role as Princess Diana in The Crown.
Mardy Fish beat Ivo Karlovic 7-6, 6-4 to reach the final of the ATP event in New Haven.
James Blake joined compatriots Andy Roddick and Robby Ginepri in the last four of the RCA Championships.
France's Gael Monfils and Gilles Simon suffered early exits from the Cincinnati Masters on Tuesday.
Andy Roddick's hopes of a fifth Queen's Club title ended painfully on Saturday when the American limped out midway through the first set of his all-American semi-final against James Blake with a right ankle injury.
A quick look at the winners of the 96th Annual Academy Awards.
Top seed Rafa Nadal marched into the last 16 of the Shanghai Masters with a thoroughly entertaining 6-2, 6-7, 6-4 victory over American James Blake on Wednesday.
Xavier Malisse took his second Delray Beach title by beating American James Blake 5-7, 6-4, 6-4.
They beat Slovakia in the final of the $A1 million mixed team event.
Czech Radek Stepanek beat top seed and defending champion Andy Roddick 3-6, 7-6, 6-4 to reach the San Jose Open final on Saturday.
The United States lifted the Davis Cup for the 32nd time when they completed a 4-1 victory over Russia in the 2007 World Group final on Sunday
Defending champion Rafael Nadal held his nerve to reach the last four at the Pacific Life Open by beating American James Blake 7-5, 3-6, 6-3 in the quarter-finals on Thursday. The second-seeded Spaniard broke the American in the eighth game of the third set before serving out to seal victory in a contest lasting just over two hours.
The scratch pair go down in straight sets in Memphis
Simone Biles clinched her fifth Olympic gold medal as she made a triumphant return to the women's gymnastics team final at the Paris Games on Tuesday, reinforcing her status as one of the greatest athletes just three years after withdrawing from the same event at the Tokyo Games.
Mario Ancic's defeat left only two players, American James Blake and German Tommy Haas, in contention for the last remaining slot at the season-ending Masters Cup.
The Aussie ace won the Stella Artois title for a record-equalling fourth time when he beat American James Blake.