Sunday Setup: Scrapped practice, qualifying upends Darlington's dynamics

DARLINGTON, S.C. — NASCAR Cup Series crew chiefs will have a carbon copy of the rules configuration and Goodyear tire setup that teams managed in their most recent visit to Darlington Raceway in March. What they won’t have is the benefit of practice, qualifying or an according-to-form starting lineup.The Chase presented by Mobil 1 opens with Sunday’s Cook Out Southern 500 (5 p.m. ET, USA Network, HBO Max, MRN Radio, SiriusXM NASCAR Radio), the first of 10 postseason races that