who has won the 2017 men's single australian open tennis tournament
2017 Australian Open – Men's singles final The 2017 Australian Open Men's Singles final was the championship tennis match of the Men's Singles tournament at the 2017 Australian Open. It was contested between Roger Federer and Rafael Nadal, ranked 17th and 9th in the world respectively. It was their record ninth meeting in a Grand Slam final in their rivalry, and their 1st meeting in a Grand Slam final since the 2011 French Open. In a rematch of the 2009 Australian Open final, which Nadal won in 5 sets, Roger Federer won the duel in 5 sets, beating Nadal for the first time in a Grand Slam since the 2007 Wimbledon final. He also trailed Nadal 3–1 in the final set but won 5 games in a row to win the title. This ended a 6-match losing streak against Nadal in Grand Slam events. Having lost all of their previous three encounters, this was the first time Federer defeated Nadal at the Australian Open and also marked Federer's first Grand Slam victory over Nadal outside the grass courts of Wimbledon. Federer extended his record of Grand Slam men's singles titles to 18 exceeding the previous record of 14 held by Pete Sampras.
2018 Australian Open – Men's Singles Roger Federer was the defending champion and successfully defended his title, defeating Marin Čilić in the final, 6–2, 6–7(5–7), 6–3, 3–6, 6–1. It was Federer's 20th Grand Slam singles title and record-equalling sixth Australian Open men's singles title (tied with Roy Emerson and Novak Djokovic).[1] With the win, Federer became the first male player to win at least six titles at two Grand Slam tournaments (six at the Australian Open and eight at Wimbledon). Federer became the oldest man to win a Grand Slam singles title in the Open era since Ken Rosewall in 1972.[2] The time span between Federer's first Grand slam glory at Wimbledon and this latest, almost 15 years, is an Open era record in the men's singles field.[3] This was also the 10th time that Federer has defended a Grand Slam title, with the previous time being at the 2008 US Open. Čilić became the first Croatian player to reach a singles final at the Australian Open.[4]