MIAMI GARDENS, FLORIDA - MARCH 24: Vasek Pospisil of Canada returns a shot to Mackenzie McDonald during the Miami Open at Hard Rock Stadium on March 24, 2021 in Miami Gardens, Florida. (Photo by Matthew Stockman/Getty Images)
MIAMI GARDENS, FLORIDA - MARCH 24: Vasek Pospisil of Canada returns a shot to Mackenzie McDonald during the Miami Open at Hard Rock Stadium on March 24, 2021 in Miami Gardens, Florida. (Photo by Matthew Stockman/Getty Images)