Lions hire Robertson as secondary coach
He was on the staff with the Tennessee Titans from 2007-11, beginning as an assistant secondary coach and eventually becoming the secondary coach.
Robertson played 12 NFL seasons, his first 10 with the Houston-Tennessee franchise before finishing his career with Seattle.
After his playing career ended, he returned to the Titans as director of player development.
Copyright 2013 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index
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