Tennis player <a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=John+Isner&family=editorial&specificpeople=4439464 ng-click='$event.stopPropagation()'>John Isner</a> speaks at The American Express Fan Experience at The 2015 US Open featuring 'You Vs. Sharapova' Virtual Reality Experience and American Express Fan Court at USTA Billie Jean King National Tennis Center on August 31, 2015 in New York City.