The Lions may have an injury concern with one of their key defensive players.

Detroit added rookie cornerback Terrion Arnold to Thursday’s practice report with a groin injury. He was limited in the day’s session.

Arnold, the No. 24 overall pick of this year’s draft, has recorded six passes defensed and a fumble recovery this season. He’s started all 10 games and been on the field for 91 percent of Detroit’s defensive snaps.

Tight end Sam LaPorta still appears on track to return from a shoulder injury, as he is listed as a full participant for the second day in a row.

Cornerback Carlton Davis (thumb), cornerback Emmanuel Moseley (pectoral), and tight end Shane Zylstra (neck) all also remained full.

Receiver Allen Robinson (gameday concussion protocol evaluation) was removed from the report after he was a full participant in Wednesday’s practice.