ALLEN PARK (AP) — The Detroit Lions have hired Marcus Robertson to be their 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.

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