Question: has tsitsipas ever beaten federer?
Answer: Roger Federer beaten by Stefanos Tsitsipas in Australian Open fourth round. ... 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.