Sinner remains the man to beat at Melbourne Park even as doping officials seek a two-year ban for the world number one for failing two drugs tests last March.
Andujar, ranked 75th in the world, made a strong start, while Federer struggled to settle into his serving rhythm early on.
Tennis great Roger Federer sent Indian film buffs on social media into a tizzy as he asked for suggestions of Bollywood classics.
World number three Roger Federer beat Romanian qualifier Marius Copil 7-6(5), 6-4 to win the Swiss Indoors on Sunday and claim his 99th career title in front of his home crowd in Basel.
World number one Novak Djokovic said on Wednesday he hopes rival Roger Federer will return to competitive action soon and be able to compete with the best again after the Swiss great said he would miss the Australian Open in January.
World number one Novak Djokovic produced a majestic display in a 7-5, 6-3 victory over American John Isner on Thursday to extend his winning streak in Asia.
Alexander Zverev won the first set 7-6, but Novak Djokovic has been forced to withdraw from the match due to injury from the Australian Open semi-final on Friday.
Roger Federer admits he suffered a "bit of a breakdown" during last month's tour of Mexico and South America after rioting in Colombian capital Bogota forced him to cancel his exhibition match against German's Alexander Zverev.
Roger Federer's come-from-behind win over Colombian Alejandro Falla enabled him to join an elite club, writes Bikash Mohapatra
Roger Federer's come-from-behind win over Colombian Alejandro Falla enabled him to join an elite club, writes Bikash Mohapatra
Roger Federer will miss the Australian Open in January and is unlikely to return to competition until mid-2022 as he recovers from multiple knee surgeries, the former world number one told Swiss media.
Rafael Nadal's championship point winning racket from his 2007 French Open final victory over Roger Federer was sold for more than $118,000 at an auction on Monday, ranking among the highest-priced such memorabilia.
World No 2 Roger Federer was bestowed with two honours by The ATP following his victory over Canadian Milos Raonic on Sunday.
Federer's bid for a 20th grand slam title will be aided by the absences of Andy Murray and Kei Nishikori, as well as lingering injuries to top players who are still expected to play like Rafael Nadal and Stan Wawrinka.
Djokovic saved three breakpoints in stifling conditions to go 5-4 up but lost the opening set in a tough tiebreak as Opelka cranked up his serve
Roger Federer made a winning return to competitive tennis after six months out of the game on Monday, thrilling a packed Rod Laver Arena as he beat qualifier Juergen Melzer 7-5, 3-6, 6-2, 6-2 to reach the Australian Open second round.
Roger Federer and Serena Williams, holders of a combined 43 singles Grand Slam titles, will face each other for the first time on Tuesday when they feature in the Hopman Cup mixed doubles match.
The defending champion did not require his dazzling best against 80th-ranked Hungarian Marton Fucsovics in his first match scheduled during the day session but still emerged a comfortable 6-4, 7-6(3), 6-2 winner.
Roger Federer's decision to withdraw means Switzerland can no longer take part in the nation-based event on January 3-12
Friction has dogged the ATP Player Council, whose president is world number one Novak Djokovic, this year since ATP president Chris Kermode failed to gain support for another term.
Federer's preparations for the claycourt Grand Slam were cut short in Geneva
Australian Open tournament director Craig Tiley has defended giving Roger Federer 'prime time' treatment at the year's first Grand Slam, saying it was a matter of meeting fans and broadcasters' demands for the 'box office' athlete.
Carlos Alcaraz kept his Indian Wells 'three-peat' campaign on track with a straight sets win against Canadian Denis Shapovalov in the third round.
Novak Djokovic won a record-equalling 20th Grand Slam title by after winning this year's Wimbledon drawing level with long-time rivals Roger Federer and Rafael Nadal.
With only two weeks to go for the Australian Open, tennis stars Roger Federer, Victoria Azarenka, Radek Stepanek and Garbine Muguruza were seen in a light-spirited mood in Brisbane. As part of Nickelodeon Kids Day, the tennis stars led by 17-time Grand Slam winner Roger Federer posed for pictures with cartoon characters.
Roger Federer clinched a record-extending 10th Swiss Indoors championship title in his hometown of Basel with a crushing 6-2, 6-2 victory over Australia's Alex de Minaur on Sunday.
Roger Federer and Rafael Nadal will attempt to set a world record for attendance at a tennis match, with the help of some celebrity guests, when they play an exhibition game in Cape Town in February.
Roger Federer blamed troubled preparations for his US Open quarter-final exit on Wednesday, saying he had spent most of the time leading up to the year's final Grand Slam worrying about his back instead of focusing on training.
Djokovic looked in fine nick in Shanghai, playing with consistency throughout the tournament to reach his fifth final at the ATP Masters 1000 event
Security was breached at the French Open on Sunday when a fan jumped onto Court Philippe Chatrier and attempted to take a selfie with Roger Federer.
Roger Federer said on Tuesday he was not that bothered about Serbia's Novak Djokovic closing in on his ranking as world number two. "I'm going to sleep well for a month. He (Djokovic) is not going to pass me anytime soon," Federer told a news conference.
Wimbledon's favourite son Roger Federer swapped his usual tennis whites for a dark suit and tie and was given a rousing standing ovation as he joined a number of Wimbledon champions dating back to the 1960s for Centre Court's centenary celebrations.
Roger Federer breezed back into action to reach the second round of the Dubai Open with a straightforward 6-1, 6-3 over erratic Frenchman Benoit Paire on Monday.
The 23-year-old Federer dominated the men's game this year, winning 11 titles including three Grand Slams and the Masters Cup.
Speaking after a 3-6, 6-2, 6-3, 6-4 win over Bosnian Damir Dzumhur, Federer said the prize money for players at the top of the sport had improved significantly since he began playing but that was not the case at the other end of the spectrum.
International Premier Tennis League founder Mahesh Bhupathi, one of India's most successful doubles player, confirmed the absence of the two star players.
Roger Federer was joined by Rafael Nadal, Novak Djokovic and Andy Murray at a fun practice session that held the spectators spellbound.
He has not won any tournament since the Australian Open in January. Last week, he even lost on grass. Will it be a different story at Wimbledon?
Carlos Alcaraz produced an utterly ruthless performance to dismantle Novak Djokovic in the Wimbledon final on Sunday.
There could be no place more appropriate for Djokovic to finally break free of his tie with Margaret Court on 24 Grand Slam singles titles than in her own backyard at Melbourne Park, where he has won the Norman Brookes Challenge Cup 10 times.