Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac leaves court after losing his round of 32 match against Serbia's Novak Djokovic REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac leaves court after losing his round of 32 match against Serbia's Novak Djokovic REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic celebrates winning his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic after winning his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic after winning his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic after winning his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic reacts during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic fans are seen with banners during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic fans are seen during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky TPX IMAGES OF THE DAY 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic reacts during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Amr Alfiky 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Czech Republic's Tomas Machac in action during his round of 32 match against Serbia's Novak Djokovic REUTERS/Rula Rouhana 

Tennis - ATP 500 - Dubai Tennis Championships - The Dubai Duty Free Tennis Centre, Dubai, United Arab Emirates - February 28, 2023 Serbia's Novak Djokovic in action during his round of 32 match against Czech Republic's Tomas Machac REUTERS/Amr Alfiky 

Novak Djokovic gestures during a news conference in Belgrade, Serbia February 22, 2023. REUTERS/Zorana Jevtic 

Novak Djokovic speaks during a news conference in Belgrade, Serbia February 22, 2023. REUTERS/Zorana Jevtic 

Novak Djokovic speaks during a news conference in Belgrade, Serbia February 22, 2023. REUTERS/Zorana Jevtic 

Novak Djokovic attends a training session in Belgrade, Serbia February 22, 2023. REUTERS/Zorana Jevtic