Langford entered the NFL in 2009 as an undrafted free agent out of Vanderbilt. He began his career with the Philadelphia Eagles and later joined the Kansas City Chiefs. He appeared in six games for the Chiefs in 2010 and 11 in 2011. Last season, he had two starts for the Chiefs.
The move to sign Langford was likely made to add more depth to the safety position. With Louis Delmas out after having knee surgery and Amari Spievey missing Friday's game because of headaches, there was a need to add a safety to the team.
Bosworth ended up spending all of one week with the Lions in his second stint in Detroit. He was just signed last Saturday, and now he is once again a free agent.