Djokovic's temper flares up as he leaves Tokyo empty-handed

Novak Djokovic, of Serbia, reacts during the bronze medal match of the tennis competition against Pablo Carreno Busta, of Spain, at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Elina Svitolina, of the Ukraine, reacts during the bronze medal match of the tennis competition against Elena Rybakina, of Kazakhstan, at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Novak Djokovic, of Serbia, reacts during the bronze medal match of the tennis competition against Pablo Carreno Busta, of Spain, at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Novak Djokovic, of Serbia, departs the Ariake Tennis Center after his loss to Pablo Carreno Busta, of Spain, in the bronze medal match of the men's singles tennis competition at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Novak Djokovic, of Serbia, rest between games against Pablo Carreno Busta, of Spain, during the bronze medal match of the tennis competition at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Belinda Bencic, of Switzerland, reacts after defeating Marketa Vondrousova, of the Czech Republic, in the women's gold medal match of the tennis competition at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Marketa Vondrousova, of the Czech Republic, reacts during the women's gold medal match of the tennis competition against Belinda Bencic, of Switzerland, at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Pablo Carreno Busta, of Spain, celebrates after defeating Novak Djokovic, of Serbia, in the bronze medal match of the tennis competition at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Luisa Stefani, left, and Laura Pigossi, of Brazil, speak during the women's doubles bronze medal tennis match against Veronika Kudermetova and Elena Vesnina, of the Russian Olympic Committee, at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Patrick Semansky)

Novak Djokovic, of Serbia, returns a shot to Pablo Carreno Busta, of Spain, during the bronze medal match of the tennis competition at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Novak Djokovic, of Serbia, reacts during the bronze medal match of the tennis competition against Pablo Carreno Busta, of Spain, at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)

Pablo Carreno Busta, of Spain, reacts after defeating Novak Djokovic, of Serbia, in the bronze medal match of the tennis competition at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo, Japan. (AP Photo/Seth Wenig)