PITTSBURGH — Pittsburgh Steelers coach Mike Tomlin says offensive coordinator Bruce Arians is retiring from coaching.

The 57-year-old Arians joined the Steelers as the wide receivers coach in 2004 and was promoted to offensive coordinator in 2007.

Tomlin announced the move in a statement Friday, lauding Arians for “helping lead our offense to new heights.”

Arians entered the NFL as a running backs coach for the Kansas City Chiefs in 1989 and served as Peyton Manning’s first quarterback coach.