ALLEN PARK, Mich. (AP) - The Detroit Lions have signed defensive end Freddie Bishop and released running back Devin Moore. The team did not disclose contract terms Tuesday. Bishop, an undrafted free agent, played college football at Western Michigan. He had 15 sacks in four seasons there. The 27-year-old Moore played four games for the Indianapolis Colts in 2010, but he hasn't appeared in a regular season game since.