What to Watch: 'A lot to learn still' at Darlington, where rules may make a ruckus in Goodyear 400

Darlington, South Carolina Track length: 1.366 miles When: 3 p.m. ET Where to tune in: FS1, HBO Max, FOX One, MRN Radio, SiriusXM NASCAR Radio Race purse: $11,233,037 Race distance: 293 laps | 400.2 ...