Thanasi Kokkinakis Pictures

  • KEY BISCAYNE, FL - MARCH 24: Thanasi Kokkinakis of Australia plays a backhand against Roger Federer of Switzerland in their second round match during the Miami Open Presented by Itau at Crandon Park Tennis Center on March 24, 2018 in Key Biscayne, Florida. (Photo by Clive Brunskill/Getty Images)