Earnhardt Jr. will serve as the crew chief for Connor Zilisch in the Xfinity Series race at Pocono on Saturday. Zilisch’s crew chief Mardy Lindley is serving a one-race suspension for loose lug nuts on Zilisch’s car at the end of the race in Nashville earlier this month.

JR Motorsports co-owner will fill in for No. 88 crew chief Mardy Lindley for Saturday's Xfinity Series race at Pocono (3:30 p.m. ET, The CW).

With Zilisch's full-time crew chief, Mardy Lindley, suspended one race because of two unsecured lug nuts following the May 31 race at Nashville, team co-owner and NASCAR Hall of Famer Dale Earnhardt Jr. will be making his debut as crew chief of the No. 88 team this weekend, the team confirmed to its X account on Wednesday.