John Isner just took home the biggest title of his career at the age of 32, and he couldn't be more grateful. After winning the Miami Open over 20-year-old Alexander Zverev, the American was emotional, and extremely thankful to everyone that has played a role in his career.
He credited a lot of people for his surge in success (after a terribly slow start to 2018), including his chiropractor of six years, Clint Cordial.