Tennis Channel - And now, an upset on the men's side 🤯 World No. 6 Stefanos Tsitsipas is knocked out of the first round by 89th-ranked Thomas Fabbiano: http://tnns.co/9J1LEH | Facebook
![Thomas Fabbiano knocks out No. 4 Dominic Thiem at the 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event Thomas Fabbiano knocks out No. 4 Dominic Thiem at the 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_USTA1168931_20190827_USO_D2_BJPA1529.jpg)
Thomas Fabbiano knocks out No. 4 Dominic Thiem at the 2019 US Open - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Thomas Fabbiano during day one of the Nature Valley Open at Nottingham Tennis Centre Stock Photo - Alamy Thomas Fabbiano during day one of the Nature Valley Open at Nottingham Tennis Centre Stock Photo - Alamy](https://c8.alamy.com/zooms/6/0bd8de4cf5fd4e6283edbd5b543d945c/p1d4y7.jpg)