PITTSBURGH, Pa. - Ryan Shazier's breakout game came with a familiar price.

The second-year Pittsburgh Steelers linebacker will sit out Sunday's trip to St. Louis with a shoulder injury. Vince Williams and Sean Spence will fill in for Shazier.

Shazier injured the shoulder in the fourth quarter of last week's romp over San Francisco. Shazier led the Steelers with 15 tackles, including a sack and a fumble recovery. He called his shoulder issue "a linebacker injury," but it prevented him from practicing all week. Shazier missed seven games in 2014 with knee and ankle problems.

While Shazier is out, nose tackle Daniel McCullers and cornerback Cortez Allen are questionable.


AP NFL website: www.pro32.ap.org and www.twitter.com/AP_NFL