Steelers GM Kevin Colbert said today that injured linebacker Ryan Shazier won’t play in 2018. “He knows that, and we know that, and we’re gonna continue to support him in his recovery,” Colbert said, adding that they will keep him on the roster next year. “We know that’s a challenge, ‘cause we’ll be at 89 players and fortunately for Ryan, he’s covered in that manner.” Shazier suffered a serious spinal injury last December when he crumpled to the turf while making a tackle in Cincinnati. He underwent spinal stabilization surgery shortly after the injury, but as he recovered, there was almost no concrete information about Shazier’s condition—could he walk? Did he suffer neurological damage? Two months after the injury, the first reports surfaced that Shazier coul…