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The Lions continued altering the back end of the roster on Friday, signing former Central Michigan defensive end Louis Palmer and cutting veteran offensive tackle Lamar Holmes.

During the past three seasons at Central Michigan, Palmer had 80 tackles, 12 for loss, four sacks and two forced fumbles. He went undrafted this year.

The 6-foot-1, 269-pound Palmer will compete for a job in a shallow rotation of defensive ends. Behind likely starters Ziggy Ansah and Devin Taylor, Wallace

Gilberry is the only end with significant NFL experience on defense. Brandon Copeland and sixth-round pick Anthony Zettel could earn playing time, and the Lions added two other undrafted rookies, James DeLoach (Georgia) and Deonte Gibson (Northwestern).

Holmes joined the Lions in February and was among the first additions of general manager Bob Quinn. Although the former Atlanta starter seemed to have a shot at making the roster at the time, the addition of Taylor Decker and Joe Dahl in the draft made it less likely Holmes would make the roster.

jkatzenstein@detroitnews.com

Twitter: @jkatzenstein