DOVER, Del. (AP) — Two NASCAR team owners who said they would fire employees who do not stand for the national anthem do not speak for the sport, star driver Dale Earnhardt Jr. said Friday.Several owners and executives said last weekend they wouldn’t want anyone in their organizations to protest as NFL players have done to indicate their concern with social injustices, particularly against African-Americans. Richard Childress, who was Dale Earnhardt’s longtime team owner, said of protesting: “It’ll get you a ride on a Greyhound bus.” Hall of Fame driver Richard Petty said anyone that refused to stand for the anthem “ought to be out of the country.”Earnhardt, NASCAR’s most popular driver who will retire at the end of the season, tweeted Monday in support of peaceful protest .