Frances Tiafoe returns a shot against Konstanin Kravchuk of Russia during Day 4 of the Miami Open at Crandon Park Tennis Center on March 23, 2017 in Key Biscayne, Florida.
Frances Tiafoe returns a shot against Konstanin Kravchuk of Russia during Day 4 of the Miami Open at Crandon Park Tennis Center on March 23, 2017 in Key Biscayne, Florida. Al Bello Getty Images
Frances Tiafoe returns a shot against Konstanin Kravchuk of Russia during Day 4 of the Miami Open at Crandon Park Tennis Center on March 23, 2017 in Key Biscayne, Florida. Al Bello Getty Images