A sixth-round draft pick of the Chiefs in 2009, Lawrence played in six games last season and was a member of the practice squad for all 15 weeks this year. He was active in Chiefs return game as a rookie, returning 16 kickoffs for 317 yards and also caught one pass for nine yards.
Richardson was signed on December 1st as an insurance policy to a then-ailing Chiefs secondary. He was active for three games since his signing. Richardson played in 11 games (one start) with the Chiefs in 2009.