Last updated on .From the section Tennis Australian Open 2019 Venue: Melbourne Park Dates: 14-27 January Coverage: Daily live commentaries on the BBC Sport website, listen to Tennis Breakfast daily from 07:00 GMT on BBC Radio 5 live sports extra and watch highlights on BBC TV and online. Defending champion Roger Federer is out of the Australian Open after Greek 14th seed Stefanos Tsitsipas earned the biggest win of his career to reach the quarter-finals. The Swiss lost 6-7 (11-13) 7-6 (7-3) 7-5 7-6 (7-5) on a dramatic night. Federer, a six-time champion, failed to reach the last eight in Melbourne for only the second time in 16 years. Tsitsipas, 20, saved all 12 of 37-year-old Federer's break points on his way to a famous win. "I'm the happiest man on earth right now, I can't describe it," he said. "I beat my idol. My idol today became pretty much my rival." Federer lumped a forehand long to leave Tsitsipas serving for the match in the fourth-set tie-break, and the youngster forced him into a backhand error to win in three hours and 45 minutes. Tsitsipas dropped his racquet in celebration and seemed to mouth "me?" at the crowd, expressing his shock further by covering his hand with mouth, before starting to cry as he walked over to celebrate with his team. "That moment is definitely something that I will never, ever, ever forget," he said. "This match point is going to stay, I'm pretty much sure, forever, for the rest of my life." He will play Spain's Roberto Bautista Agut, who beat Croatian sixth seed Marin Cilic in five sets, in the last eight. And the Greek believes he is on the verge of "something big" and could perhaps even win the tournament. "That's why I'm here, playing to win the trophy," he said. "I want it really badly." Federer rues missed opportunities Federer was aiming to win a record seventh men's singles title at Melbourne Park, moving him clear of world number one Novak Djokovic and Australian legend Roy Emerson. But the 20-time Grand Slam champion was undone by a player considered to be one of the best hopes to take over the mantle when Federer - along with Djokovic and Rafael Nadal - retires. The pair were contesting their first ATP-level match, although did meet last month in a Hopman Cup tie which Federer edged in two tie-breaks, indicating their contest in Melbourne could be equally tight. Tsitsipas' fearless and energetic approach unsettled Federer, seemingly putting doubt in the former world number one's mind on the key points. Federer failed to convert any of 12 break points, with some errant forehands particularly letting him down. "There are always multiple factors in match like this, but it didn't go well on the set points," he said. "I didn't break him at the Hopman Cup either, so something is going wrong. It is very frustrating." The most significant were the eight which he could not take in a six-game spell in the second set - specifically the four which were set points in a nerve-wracking 10th game. For three consecutive service games, Tsitsipas was put under severe examination in lengthy battles which the Greek eventually came through unscathed. That enabled him to go on and level in the tie-break - a pivotal moment which turned the match in his favour. "I could have cracked at any moment, but I didn't because I really wanted it bad," said Tsitsipas. "That mental toughness helped a lot. It could have been a different match if I didn't stand that pressure." Federer had lost his past two Grand Slam matches after dropping sets for the first time in the tournament - against Kevin Anderson at Wimbledon and John Millman at the US Open - and he suffered the same fate again. "I lost to a better player who played very well. He stayed calm and hung in there, which is not easy for younger guys so credit to him," Federer added. Breakthrough victory for rising star Tsitsipas has enjoyed a rapid rise over the past 18 months, becoming the first Greek man to reach the world's top 100 in October 2017 and then climbing to his current ranking of 15th. That transferred into trophies when he won his first ATP Tour title at the Stockholm Open last October, going on to win the NextGen Finals - the end-of-season finals for the best players aged under 21 - in December. Yet this is the landmark win at a Grand Slam which will now announce his arrival to a wider audience. It was not all about digging in on the break points, however. Tsitsipas matched Federer in a high-quality encounter, producing 61 winners - bettering the Swiss' tally by one - and succeeding in 71% of his 68 forays forward to the net. He limited his unforced errors to 38, compared to 55 from Federer which included 40 from his forehand alone. Although most fans inside Rod Laver Arena were pro-Federer, everybody watching cannot have failed to have been impressed by Tsitsipas' all-action style. "I believe in coming into the net and being aggressive and taking the ball early, we have to keep it going," he said. "Most players in this era are baseliners. I like this aggressive game, coming into the net, and serve and volleying now and again. "It keeps the game alive and makes it much more interesting." Fading stamina fact of life for Federer - analysis BBC tennis correspondent Russell Fuller at Melbourne Park Stefanos Tsitsipas offered Roger Federer no respite. His level never dipped, and he set the platform for a famous victory by fending off four break points and four set points to win the second set. The first signs of alarm for the Swiss came in the third set. He may have won this title for the past two years, and an eighth Wimbledon title in the months in between, but fading stamina is a fact of life even for Federer when he is playing a five set match against a man 17 years his junior. Last year, Federer did not drop a set en route to the final, but he lost in five to Kevin Anderson at Wimbledon and in four to John Millman on a brutally humid night at the US Open. Federer announced afterwards that he plans to play at this year's French Open for the first time since 2015. That will be cause for great rejoicing in Paris, but you do have to wonder what impact that will have on his chances at Wimbledon.<doc-sep>Find out how to watch Roger Federer vs. Stefanos Tsitsipas on Sunday, Jan. 20 in the Round of 16 of the Australian Open. No. 3 seed Roger Federer will face No. 14 Stefanos Tsitsipas on Sunday, Jan. 20 in Round of 16 of the 2019 Australian Open. Federer, 37, has cruised thus far in the Australian Open. He defeated all three opponents in straight sets, most recently beating American Taylor Fritz on Thursday. Tsitsipas has won each of his past three matches in four sets. Tsitsipas defeated No. 19 Nikoloz Basialshvili on Thursday, winning the 6-3, 3-6, 7-6, 6-4. The two will meet at Rod Laver Arena. How to watch the match: Time: 3 a.m. ET TV channel: ESPN2 Live stream: Watch the match live online through the Australian Open's website.<doc-sep>During Stefanos Tsitsipas’s post-match interview on Rod Laver Arena on Tuesday, a fan in the crowd shouted out “Greek freak!” It wasn’t a sledge, despite Australia’s long and distinguished history in this area. Instead – as Tsitsipas immediately acknowledged – this was a reference to a Greek-Nigerian basketballer who goes by the same alias. “All we need is [Giannis] Antetokounmpo,” replied Tsitsipas, taking the interruption in good heart. At 6ft 4in, Tsitsipas is not such an unusual physical specimen as Antetokounmpo, an NBA playmaker who stands seven inches taller. But there is something uncanny about his poise – both with the racket and in front of the microphone – that makes it hard to believe he is only 20. After moving into the semi-finals with another spectacular performance, this new “Greek freak” told reporters that he aspires to deliver the complete tournament. In other words, he wants to become the first man to defeat the three greatest players of this or any other era – Roger Federer, Rafael Nadal and Novak Djokovic – at the same slam. “I’m happy to play with these opponents,” said Tsitsipas. “I think they make me better and I learnt many things playing against them. I hope it happens [because] I have nothing to lose. There are only positives.”<doc-sep>
Tsitsipas flings another sublime one-handed backhand winner cross court to get his nose in front (1-0). The Greek latches on to a a miscued forehand from Fed to fire a reply into the net-rushing master for a 2-0 lead before Fed gets on the board. Tsitsipas misses a backhand down the line as adrenaline takes over as Federer draws level at 2-2, but an ace keeps the 14th seed's confidence up (3-2). It's three-all at the changeover as Tsitsipas can't get a lob to land inside the line. A nice try. Fed edges in front for the first time in the breaker with a big serve (3-4) before the Greek curls a forehand winner into the corner to restore parity (4-4). Federer injects some pace on forehand that draws an error from Tsitsipas for (4-5). Tsitsipas has another word with the umpire. Unsure as to why. The umpire instructs the crowd to keep quiet during points. Fair enough. Tsitsipas won't go quietly, he forces Fed to strike long now for five-all and it's nip and tuck. A fantastic serve out wide brings Fed to set point (6-5). Tsitsipas saves it with positive play again, rushing the net and pushing a volley into the open court (6-6). Federer skies a forehand as he steps in court, trying to strike the ball early and now Tsitsipas has a set point (7-6). A big first serve from Fed out wide makes it all square again (7-7). Fed goes down the T this time to bring up his second set point. But it's a big first serve from Tsitsipas (8-8) and then a forehand into the net from Fed which turns the momentum again (9-8). Tsitsipas tries another lob on set point No 2 but it's unsuccessful again and the pair exchange ends for a third time (9-9). A clever drop shot from Federer presents the big man with set point No 3 (9-10). Fed sets up the next rally beautifully but then fires wide when well set (10-10). Tsitsipas delivers a timely first serve down the T for set point No 3 (11-10), but then strikes a second service return into the middle (11-11). Fed swats away a volley for set point No 4 (11-12) but how much longer can both keep this up? Controversy again as a fan calls out when Tsitsipas strikes deep. The ball was good and the rally continues but it throws Tsitsipas and he drags his forehand into the tramlines. Federer takes the tiebreaker and the first set (11-13). FEDERER WINS FIRST SET.