see more

MOSCOW, RUSSIA - OCTOBER 20: Tommy Paul of the United States plays a shot against Marin Cilic of Croatia during on Day Three of the VTB Kremlin Cup at Central court of the Irina Viner-Usmanova Gymnastics Palace and the Palace of Sports on October 20, 2021 in Moscow, Russia. (Photo by Oleg Nikishin/Getty Images)

MOSCOW, RUSSIA - OCTOBER 20: Tommy Paul of the United States  plays a shot against Marin Cilic of Croatia during on Day Three of the VTB Kremlin Cup at Central court of the Irina Viner-Usmanova Gymnastics Palace and the Palace of Sports on October 20, 2021 in Moscow, Russia. (Photo by Oleg Nikishin/Getty Images)