KEY BISCAYNE, FL - MARCH 21: Coach Nick Bollettieri helps to inspire children during Kids Day at the 2017 Miami Open on March 21, 2017, at Tennis Center at Crandon Park in Key Biscayne, FL. (Photo by Aaron Gilbert/Icon Sportswire via Getty Images)
KEY BISCAYNE, FL - MARCH 21: Coach Nick Bollettieri helps to inspire children during Kids Day at the 2017 Miami Open on March 21, 2017, at Tennis Center at Crandon Park in Key Biscayne, FL. (Photo by Aaron Gilbert/Icon Sportswire via Getty Images)