![February 18, 2020: Stefan KOZLOV (USA) plays a backhand against Ugo HUMBERT (FRA) at the 2020 Delray Beach Open ATP professional tennis tournament, played at the Delray Beach Stadium & Tennis Center February 18, 2020: Stefan KOZLOV (USA) plays a backhand against Ugo HUMBERT (FRA) at the 2020 Delray Beach Open ATP professional tennis tournament, played at the Delray Beach Stadium & Tennis Center](https://l450v.alamy.com/450v/2ejkgar/february-18-2020-stefan-kozlov-usa-plays-a-forehand-against-ugo-humbert-fra-at-the-2020-delray-beach-open-atp-professional-tennis-tournament-played-at-the-delray-beach-stadium-tennis-center-in-delray-beach-florida-usa-mario-houbenphoto-by-mario-houbencsmsipa-usa-2ejkgar.jpg)
February 18, 2020: Stefan KOZLOV (USA) plays a backhand against Ugo HUMBERT (FRA) at the 2020 Delray Beach Open ATP professional tennis tournament, played at the Delray Beach Stadium & Tennis Center
![ITF on Twitter: "Vintage Chardy 🍷 Cheered on by #FRA compatriot Ugo Humbert, @jimchardy joins him in the #Tokyo2020 quarter-finals after downing Liam Broady 7-6(3) 4-6 6-1 #Tennis | #Olympics https://t.co/T05btg70ul" / Twitter ITF on Twitter: "Vintage Chardy 🍷 Cheered on by #FRA compatriot Ugo Humbert, @jimchardy joins him in the #Tokyo2020 quarter-finals after downing Liam Broady 7-6(3) 4-6 6-1 #Tennis | #Olympics https://t.co/T05btg70ul" / Twitter](https://pbs.twimg.com/media/E7XqndPWEAQ_jyL.jpg:large)
ITF on Twitter: "Vintage Chardy 🍷 Cheered on by #FRA compatriot Ugo Humbert, @jimchardy joins him in the #Tokyo2020 quarter-finals after downing Liam Broady 7-6(3) 4-6 6-1 #Tennis | #Olympics https://t.co/T05btg70ul" / Twitter
![Ugo Humbert Says Poor Form Could Be Due To COVID-19 Vaccine, Claims Others Have Experienced Similar - UBITENNIS Ugo Humbert Says Poor Form Could Be Due To COVID-19 Vaccine, Claims Others Have Experienced Similar - UBITENNIS](https://www.ubitennis.net/wp-content/uploads/2022/04/DloMpU6UYAEYzL9-1000x600.jpg)