MIAMI GARDENS, FLORIDA - MARCH 24: Kristyna Pliskova of Czech Republic returns a shot to Katie Boulter of Great Britain 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: Kristyna Pliskova of Czech Republic returns a shot to Katie Boulter of Great Britain during the Miami Open at Hard Rock Stadium on March 24, 2021 in Miami Gardens, Florida. (Photo by Matthew Stockman/Getty Images)