![Stefanos Tsitsipas stuns defending champion Roger Federer at Australian Open to reach quarter-finals Stefanos Tsitsipas stuns defending champion Roger Federer at Australian Open to reach quarter-finals](https://www.telegraph.co.uk/content/dam/tennis/2019/01/20/TELEMMGLPICT000186126207_trans_NvBQzQNjv4BqdQ8YrSsR88w3pzEpBtW9VqBQ_1SunrCdvFTr_MrdygA.jpeg)
Stefanos Tsitsipas stuns defending champion Roger Federer at Australian Open to reach quarter-finals
![Stefanos Tsitsipas beats Roger Federer: Australian Open 2019 – as it happened | Australian Open 2019 | The Guardian Stefanos Tsitsipas beats Roger Federer: Australian Open 2019 – as it happened | Australian Open 2019 | The Guardian](https://i.guim.co.uk/img/media/e539815c264879abc87b4d97b8cd0ef7f54e73a2/0_113_3497_2098/master/3497.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=07ff3323c27cf15a19487c7c043e7daf)
Stefanos Tsitsipas beats Roger Federer: Australian Open 2019 – as it happened | Australian Open 2019 | The Guardian
![He has a chance' - Mats Wilander names the youngster he expects to reach Roger Federer level - Tennishead He has a chance' - Mats Wilander names the youngster he expects to reach Roger Federer level - Tennishead](https://tennishead.net/wp-content/uploads/2019/10/Stefanos-Tsitsipas-Roger-Federer-Australian-Open-2019.jpg)
He has a chance' - Mats Wilander names the youngster he expects to reach Roger Federer level - Tennishead
![Australian Open 2019: 20-year old Stefanos Tsitsipas stuns defending champion Roger Federer | Sports News,The Indian Express Australian Open 2019: 20-year old Stefanos Tsitsipas stuns defending champion Roger Federer | Sports News,The Indian Express](https://images.indianexpress.com/2019/01/tsitsipas-1.jpg)
Australian Open 2019: 20-year old Stefanos Tsitsipas stuns defending champion Roger Federer | Sports News,The Indian Express
![Roger Federer crashes out of Australian Open with loss to Greek sensation Stefanos Tsitsipas | The Sun Roger Federer crashes out of Australian Open with loss to Greek sensation Stefanos Tsitsipas | The Sun](https://www.thesun.co.uk/wp-content/uploads/2019/01/SPORT-PREVIEW-FEDERER1.jpg?w=620)
Roger Federer crashes out of Australian Open with loss to Greek sensation Stefanos Tsitsipas | The Sun
![Roger Federer Upset by Stefanos Tsitsipas in 2019 Australian Open Round of 16 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report Roger Federer Upset by Stefanos Tsitsipas in 2019 Australian Open Round of 16 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report](https://img.bleacherreport.net/img/images/photos/003/787/019/hi-res-717c1a429a7d65bd800af4a473d4af5c_crop_north.jpg?1547986221&w=3072&h=2048)
Roger Federer Upset by Stefanos Tsitsipas in 2019 Australian Open Round of 16 | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
![Australian Open 2019: Stefanos Tsitsipas builds on Youtube lessons to beat Roger Federer - BBC Sport Australian Open 2019: Stefanos Tsitsipas builds on Youtube lessons to beat Roger Federer - BBC Sport](https://ichef.bbci.co.uk/live-experience/cps/624/cpsprodpb/5A2C/production/_105248032_tsitsipas_getty.jpg)
Australian Open 2019: Stefanos Tsitsipas builds on Youtube lessons to beat Roger Federer - BBC Sport
![Tennis news - Roger Federer vs Stefanos Tsitsipas: A fitting final as the Swiss chases 100th title - Eurosport Tennis news - Roger Federer vs Stefanos Tsitsipas: A fitting final as the Swiss chases 100th title - Eurosport](https://imgresizer.eurosport.com/unsafe/1200x0/filters:format(jpeg):focal(1219x665:1221x663)/origin-imgresizer.eurosport.com/2019/01/20/2504955-51997810-2560-1440.jpg)