The Lions are placing cornerback Josh Wilson on injured reserve after he suffered a knee injury in Sunday's win over the Packers.
The 30-year-old Wilson was the team's top slot cornerback, so now rookie Quandre Diggs likely will see an increased role in the nickel package.
To fill Wilson's roster spot, the Lions were considering re-signing cornerback Bill Bentley, the team's third-round pick in 2012. The deal was not done as of Tuesday evening, but Detroit Sports 105.1 (WMGC) first reported it was imminent.
The Lions cut Bentley in June, and he missed most of 2014 due to a torn anterior cruciate ligament. He would provide an experienced backup nickel option.
Nevin Lawson suffered a concussion in the game Sunday, so his status for next week's game against the Oakland Raiders is unclear, leaving the Lions with just three healthy cornerbacks right now — Diggs, Darius Slay and Crezdon Butler.
Losing Wilson hurts because he was second among cornerbacks with 32 tackles and had experience blitzing from the nickel spot.
The Lions also are signing wide receiver Corey Washington to the practice squad. He went undrafted out of Newberry (S.C.) in 2014 and spent most of 2014 with the New York Giants.
The team had two openings on the practice after promoting safety Isaiah Johnson to the roster Saturday and losing wide receiver Kaelin Clay, who signed Tuesday with the Baltimore Ravens.