Sinner fired both team members last month, before winning the US Open title to make it two Grand Slam trophies in 2024 following his breakthrough Australian Open triumph.
Serbia have been drawn in Group B alongside Spain, South Korea and Canada.
On Monday, Spain eased the lockdown rules that were in effect since mid-March because of the Coronavirus pandemic. But sports facilities are supposed to remain closed at least until next week in most parts of the country.
Novak Djokovic cruised through his first singles match in Australia since being deported last year.
With Wimbledon happening simultaneously with India's five-match Test series in England, a lot of former and current cricketers have been seen at the All England Lawn Tennis Club enjoying tennis.
The Serbian's 19th successive win ended any chance of Spain's Carlos Alcaraz overtaking him in the rankings this week.
The prize money pool for this year's U.S. Open has been increased by 15% to $75 million, making it the largest purse in tennis history, the United States Tennis Association announced on Wednesday.
Novak Djokovic is returning to the US for the first time in two years after being denied entry due to being unvaccinated for COVID-19.
Top seed Novak Djokovic produced a stellar display to sweep aside Croatian Marin Cilic 6-3, 6-4 in the final of the ATP 250 Tel Aviv Open on Sunday and clinch his third title of the season.
'The drive that I have is still there. My body has been serving me well, listening to me well. I have a great team of people around me. The motivation, especially for the biggest tournaments in the sport, is still present.'
The Australian government cancelled Novak Djokovic's visa for a second time on Friday, saying the World No 1, unvaccinated for COVID-19, may pose a risk to the community.
Serbia's Novak Djokovic outclasses Russia's Andrey Rublev to set up a meeting with unseeded Tommy Paul in the semi-finals of the Australian Open on Wednesday.
Carlos Alcaraz battled a leg issue and survived a five-hour, 27-minute thriller against Alexander Zverev to reach his first Australian Open final and keep his career Grand Slam dream alive.
World No 1 Djokovic on Sunday won his sixth Wimbledon title. With this win, Djokovic now has 20 Grand Slams to his name and he is now equal with Swiss tennis maestro Roger Federer and Nadal.
'The romanticism of late night tennis in New York, it's time to move past that'
On the anniversary of the day he first walked on to the Roland Garros court 20 years ago, Rafael Nadal returned as a hero to be celebrated by a crowd that has always embraced him as one of their own.
Novak Djokovic said he is preparing for the US Open as if he will be allowed to compete at the hardcourt major, despite his refusal to take the COVID-19 vaccine.
World number one Novak Djokovic is considering going without a coach after 20 years in professional tennis, the Serb said after receiving the top men's honour at the Laureus awards.
Novak Djokovic won a record-extending 10th Australian Open crown, beating Stefanos Tsitsipas in a generational clash in the men's singles final, at Melbourne Park, on Sunday.
Nine of the world's top-10 men and nine of the top-10 women have officially entered into the U.S. Open's revamped mixed doubles event, tournament organisers said on Tuesday, with former singles champions Carlos Alcaraz and Emma Raducanu teaming up.
'Great to catch up with a champion tennis player.'
World No 1 Novak Djokovic said Carlos Alcaraz is the man to beat on clay and is one of the top title contenders for the French Open.
Djokovic will next play Denis Shapovalov, who he has beaten in all seven of their meetings.
That decision opened a path for him to target a 10th title at the Grand Slam and tie Rafael Nadal's mark of 22 majors.
The company is developing a peptide, which inhibits the coronavirus from infecting the human cell, expects to launch clinical trials in Britain this summer, he added.
The rematch between Carlos Alcaraz and Novak Djokovic was one of the most expensive get-in-final tickets in the history of the sport.
Djokovic struggled to find his range early in the contest as Spaniard Davidovich Fokina raced to lead
The 34-year-old is currently housed in a government detention hotel in the suburb of Carlton, 5 km (2 miles) north of Melbourne Park, after authorities cancelled his visa when he arrived in Australia.
'I really want to win': Confident Alcaraz targets rare Wimbledon three-peat
Daniil Medvedev, the 2021 champion, will need to shake off a run of poor form if he is to mount a challenge.
Novak Djokovic steered Serbia into the Davis Cup semi-finals with a straightforward 6-4 6-4 win over Britain's Cameron Norrie to give his team a winning 2-0 lead on Thursday.
Novak Djokovic's outstanding serving, mighty forehand and all-court defence delivered him a ninth straight win over Stefanos Tsitsipas in their Red Group match.
Sabalenka overpowers Raducanu, Osaka falls
Italy returned to the Davis Cup final after a gap of 25 years as Jannik Sinner beat Novak Djokovic in both singles and doubles to secure a 2-1 victory over Serbia on Saturday that earned the 1976 champions a title clash with Australia.
Novak Djokovic has pulled out of the Serbia team for the ATP Cup in Sydney, event organisers said on Wednesday, raising further doubts over whether the world number one will defend his Australian Open title next month.
'We've been through every chapter of this journey together, and this next one feels right.'
Novak Djokovic and his wife Jelena have tested negative for COVID-19, nine days after returning a positive test, the world number one tennis player's media team said on Thursday. Djokovic, along with Grigor Dimitrov, Borna Coric and Viktor Troicki, tested positive after playing in the Adria Tour, an exhibition tournament organised by the 17-times Grand Slam champion.
The reaction has been swift across the world to Novak Djokovic's visa has been cancelled for a second time by the Australian government.
With two match wins in total in his last four Grand Slams, Tsitsipas has turned to the former coach of Novak Djokovic to turn his fortunes around.
Former world number one Novak Djokovic will miss the US Open after he said on Thursday that he will not be able to travel to New York for the tournament, having chosen not to be vaccinated against COVID-19.
