![Grigor Dimitrov of Bulgaria in action during his match against Novak Djokovic of Serbia during the 2023 Australian Open tennis tournament at Melbourne Park in Melbourne, Friday, January 1, 2021. (AAP Image/Lukas Grigor Dimitrov of Bulgaria in action during his match against Novak Djokovic of Serbia during the 2023 Australian Open tennis tournament at Melbourne Park in Melbourne, Friday, January 1, 2021. (AAP Image/Lukas](https://c8.alamy.com/comp/2MC02BN/grigor-dimitrov-of-bulgaria-in-action-during-his-match-against-novak-djokovic-of-serbia-during-the-2023-australian-open-tennis-tournament-at-melbourne-park-in-melbourne-friday-january-1-2021-aap-imagelukas-coch-no-archiving-editorial-use-only-strictly-editorial-use-only-no-commercial-use-no-books-2MC02BN.jpg)
Grigor Dimitrov of Bulgaria in action during his match against Novak Djokovic of Serbia during the 2023 Australian Open tennis tournament at Melbourne Park in Melbourne, Friday, January 1, 2021. (AAP Image/Lukas
![Melbourne, Australia. 22nd Jan, 2019. Grigor Dimitrov of Bulgaria waits for a serve during the second round match against Tommy Paul of USA during the second round match at the ATP Australian Melbourne, Australia. 22nd Jan, 2019. Grigor Dimitrov of Bulgaria waits for a serve during the second round match against Tommy Paul of USA during the second round match at the ATP Australian](https://c8.alamy.com/comp/2AP8MCJ/melbourne-australia-22nd-jan-2019-grigor-dimitrov-of-bulgaria-waits-for-a-serve-during-the-second-round-match-against-tommy-paul-of-usa-during-the-second-round-match-at-the-atp-australian-open-2020-at-melbourne-park-melbourne-australia-on-22-january-2020-photo-by-peter-dovgan-credit-uk-sports-pics-ltdalamy-live-news-2AP8MCJ.jpg)
Melbourne, Australia. 22nd Jan, 2019. Grigor Dimitrov of Bulgaria waits for a serve during the second round match against Tommy Paul of USA during the second round match at the ATP Australian
![Melbourne, Australia. 22nd Jan, 2019. Grigor Dimitrov of Bulgaria serves during the second round match against Tommy Paul of USA at the ATP Australian Open 2020 at Melbourne Park, Melbourne, Australia on Melbourne, Australia. 22nd Jan, 2019. Grigor Dimitrov of Bulgaria serves during the second round match against Tommy Paul of USA at the ATP Australian Open 2020 at Melbourne Park, Melbourne, Australia on](https://l450v.alamy.com/450v/2ap8mc9/melbourne-australia-22nd-jan-2019-grigor-dimitrov-of-bulgaria-serves-during-the-second-round-match-against-tommy-paul-of-usa-at-the-atp-australian-open-2020-at-melbourne-park-melbourne-australia-on-22-january-2020-photo-by-peter-dovgan-credit-uk-sports-pics-ltdalamy-live-news-2ap8mc9.jpg)
Melbourne, Australia. 22nd Jan, 2019. Grigor Dimitrov of Bulgaria serves during the second round match against Tommy Paul of USA at the ATP Australian Open 2020 at Melbourne Park, Melbourne, Australia on
![AusOpen on X: "Dimitrov, the Giant Slayer 🇧🇬 @GrigorDimitrov knocks out 2020 finalist Dominic Thiem to reach his 4th #AusOpen quarterfinal. #AO2021 https://t.co/NgrRQJAB4B" / X AusOpen on X: "Dimitrov, the Giant Slayer 🇧🇬 @GrigorDimitrov knocks out 2020 finalist Dominic Thiem to reach his 4th #AusOpen quarterfinal. #AO2021 https://t.co/NgrRQJAB4B" / X](https://pbs.twimg.com/media/EuK0BZSVIAQmIDP.jpg)