20-yr-old who knocked Federer out reaches his 1st Aus Open semis
Greece's 20-year-old Stefanos Tsitsipas, who knocked Roger Federer out in the fourth round, defeated Roberto Bautista Agut in the quarter-finals on Tuesday to reach Australian Open semi-finals for the first time. The world number 15 won with a scoreline of 7-5, 4-6, 6-4, 7-6(7-2). With this, Tsitsipas became the youngest Grand Slam semi-finalist since Novak Djokovic at 2007 US Open. 