Nascar NewsPlayoff contenders in trouble as others capitalize in the Southern 500 | Extended HighlightsklengelSeptember 4, 2023 by klengelSeptember 4, 202339 12 Relive the 2023 Cook Out Southern 500 as the NASCAR Cup Series Playoffs get underway. Watch as Denny Hamlin, Tyler Reddick, Kevin Harvick and Kyle...