TALLADEGA, Ala. — A total of eight cars will drop to the rear of the field before the start of Sunday’s Monster Energy NASCAR Cup Series race at Talladega Superspeedway for unapproved adjustments. An additional car is dropping to the rear for a driver change.

The penalties affect all four Joe Gibbs Racing entries and both Roush Fenway Racing cars among the group of nine.

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Those teams will fall to the rear of the 40-car field during pace laps before the start of Sunday’s GEICO 500 (2 p.m. ET, FOX, MRN, SiriusXM NASCAR Radio). The total list (presented numerically by car number):

The No. 6 Roush Fenway Racing Ford of Ryan Newman, which qualified 24th in Saturday’s Busch Pole Qualifying.

The No. 11 Joe Gibbs Racing Toyota of Denny Hamlin (qualified 23rd)

The No. 17 Roush Fenway Racing Ford of Ricky Stenhouse Jr. (qualified sixth)

The No. 18 Joe Gibbs Racing Toyota of Kyle Busch (qualified 22nd)

The No. 19 Joe Gibbs Racing Toyota of Martin Truex Jr. (qualified 20th)

The No. 20 Joe Gibbs Racing Toyota of Erik Jones (qualified 27th)

The No. 27 Premium Motorsports Chevrolet of Reed Sorenson (qualified 37th)

The No. 51 Rick Ware Racing Ford of Cody Ware (qualified 40th)

The No. 62 Beard Motorsports Chevrolet of Brendan Gaughan (qualified 29th)

Gaughan’s No. 62 will be dropping to the rear because of a driver change. Tyler Reddick went from winning Saturday’s Xfinity Series race to qualifying the No. 62 in Gaughan’s place. Gaughan was attending his son’s first communion and was not at the track Saturday.