MIAMI GARDENS, FLORIDA - MARCH 29: Roger Federer of Switzerland plays a volley against Denis Shapovalov of Canada during day twelve of the Miami Open tennis on March 29, 2019 in Miami Gardens, Florida. (Photo by Julian Finney/Getty Images)
MIAMI GARDENS, FLORIDA - MARCH 29: Roger Federer of Switzerland plays a volley against Denis Shapovalov of Canada during day twelve of the Miami Open tennis on March 29, 2019 in Miami Gardens, Florida. (Photo by Julian Finney/Getty Images)