Cornerback Bill Bentley's rookie season with the Detroit Lions is over.
General manager Martin Mayhew said Bentley will require season-ending surgery. The third-round pick was placed on injured reserve.
Bentley started three games at right cornerback and was used in the Lions' nickel package.
The Lions signed veteran cornerback Don Carey to replace Bentley on the roster.
"He was sort of fighting through that injury with his shoulder," Mayhew said. "He felt like he could still play. He really wanted to play. But there was just concern on our part and his part about making it worse, about his ability to stay on the field if he did get into a game and about how he would perform with a harness on and some of the limitations he had, as far as his range of motion."
Another veteran cornerback, Drayton Florence, is eligible to return for the Nov. 18 game against the Packers from short-term injured reserve. Florence has been sidelined with a broken arm.