The Facts: Following up on a previous item. ... The Steelers surprised many when they designated Smith-Schuster to return from injured reserve on Thursday. The receiver was previously thought to be out for the rest of the season after suffering a shoulder injury that required surgery in October. “He’s worked hard in rehabilitation and gotten himself to this point and we simply started the 21-day window,” HC Mike Tomlin said Thursday. “We’ll look at him, see how he feels and check his level of conditioning, things that we normally do when people get into that 21-day window. It’s just part of the process. It was just a start.”

Diehards Line:Indeed, Smith-Schuster was on the field for the day’s practice and has not yet been ruled out of Sunday’s contest against the Chiefs. As Tomlin noted, the Steelers have 21 days to activate Smith-Schuster, should they continue to advance in the postseason. For what it’s worth, teammate Diontae Johnson said Smith-Schuster looked smooth” in his first practice in months. “I’m happy he is back,” Johnson said. “If he gets a chance to play, I’m going to be excited for him, to see him do what he does, which is make plays. It was good to see him out there.” Smith-Schuster caught 15 passes for 129 yards in five games before suffering the shoulder injury.