 After Unser was tentatively stripped of his victory, Mario Andretti sipped from a bottle of milk the next morning during the traditional photo shoot.Drivers are allowed to choose what type of milk they want to receive, and the publication of the "milk list" is a popular event amongst fans.For the 2019 running of the 500, 21 drivers (including winner Simon Pagenaud) picked whole milk, 10 opted for 2 percent, one selected fat-free and one did not list a preference.