Three drivers on the right side of the postseason bubble will clinch the final available berths in Sunday’s Cook Out Southern 500 (6 p.m. ET, USA Network, MRN, SiriusXM NASCAR Radio, NBC Sports ...

Catalfamo, who debuted with MRN in 2019, has covered NASCAR Cup, Xfinity, and Truck Series races in various roles. Motor Racing Network President Chris Schwartz said, “Mike plays a valuable role ...