By Daniel Bates Bubba Wallace’s No. 45 era begins Sunday at Darlington. Ahead of the Cook Out Southern 500, Wallace shared a four-word message to his nearly 470,000 Twitter followers: “Let’s go to work.” Wallace’s fans were right there with some words of encouragement. “Can’t wait!!! Let’s go!!!” one user said. “Lfg!!!!” “Couldn’t watch the last Darlington race, but everyone said that you had a rocket ship!” another commented. “Let’s bring one again tonight for this owners title!” “Have fun out there!! We’ll be rooting on the #45.” Engines start at 6 PM ET down in South Carolina.