Ryan Shazier is making "gradual improvement" following his spinal stabilization surgery on Wednesday, ESPN's Adam Schefter reported on Sunday morning.

Shazier has been at UPMC since Wednesday after being transferred over from the University of Cincinnati Medical Center. He suffered the injury during Pittsburgh's Monday night victory over the Bengals.

"While he remains hospitalized in Pittsburgh, Steelers linebacker Ryan Shazier continues to show gradual improvement from his back injury, people familiar with his condition told ESPN," Schefter reported. Doctors are controlling and limiting his movement as they wait for the swelling and bruising in his back to subside, sources said.

"It is premature to say whether Shazier will play football again, but the focus right now is not on his football career but on trying to facilitate his recovery."

That sentiment was shared by Shazier's teammates as well as Pittsburgh defensive coordinator Keith Butler, who told the media on Thursday that Shazier's long term health and well being was the only thing he was thinking about.