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Auburn running back Kamryn Pettway is dressed out for the Tigers' Week 3 game against Mercer.

Auburn RB Kamryn Pettway active, 3 key players held out vs. Mercer

AUBURN, Ala. — For the second straight week, Auburn football will take the field with just one half of its top running back duo.

Auburn junior running back Kamryn Pettway is dressed out and active for the Tigers’ homecoming game against FCS opponent Mercer (4 p.m. ET/3 p.m. CT on SEC Network Alternate). Pettway made his season debut last week against Clemson but wasn’t 100 percent because of a reported case of plantar fasciitis.

No. 2 running back Kerryon Johnson (right hamstring) is not dressed out and will miss his second straight game with the injury. Johnson was injured in the second quarter of Auburn’s season opener against Georgia Southern two weeks ago.

LIVE UPDATES: Score, stats, analysis for Week 3 Auburn-Mercer game

Sophomore defensive end Marlon Davidson is also not active for the Mercer game. He was less than 100 percent through the first two games of the season and missed a large part of fall camp with a knee injury. Redshirt freshman defensive end Nick Coe will start in his place.

In other injury news, sophomore receiver Darius Slayton — the team’s leading returning receiver from the 2016 season — is also inactive for the Mercer game. Slayton played a limited amount of snaps against Clemson after suffering an undisclosed injury against Georgia Southern in Week 1.

Auburn senior safety Nick Ruffin is dressed out and active Saturday. Gus Malzahn said earlier this week Ruffin was one of the “day-to-day” players for the Tigers this week, along with Johnson.

Freshman wide receiver/running back JaTarvious Whitlow will miss his third straight game with a left ankle injury. He was in a walking boot before the game — an upgrade from the rolling stand he had in Week 1.