FILE - Tony Stewart, right, slaps hands with fans while walking down the runway during driver introductions prior to the NASCAR Sprint Cup auto race at Daytona International Speedway in Daytona Beach, Fla., Saturday, July 6, 2013. Denny Hamlin, one of NASCAR's current veterans and also the co-owner alongside Michael Jordan of 23XI Racing, has long noticed the waning mainstream popularity of the Cup stars since the retirements of Jeff Gordon, Tony Stewart, Carl Edwards, Danica Patrick, Matt Kenseth and Johnson. (AP Photo/Phelan M. Ebenhack, File)