Ryan Shazier underwent spinal cord stabilization surgery on Wednesday night.

On Thursday, Neurologist and NFLPA consultant Dr. Anthony Alessi gave insight into what Shazier's injury means for his NFL future.

"It's not good...We're not going to see him this season," he told ESPN's Michele Steele. "He may not play football again."

Alessi added that the "bones around his spinal cord are dislocated" and that Shazier's injury is a "more severe injury" than a contusion.

"This is a much more severe situation on our hands than we thought."

Shazier underwent the surgery on Wednesday night at UMPC after being transported to Pittsburgh from the University of Cincinnati Medical Center earlier in the day. Shazier, a Pro Bowler last season and a leader in several statistical categories on the Steelers' defense this season, issued the following tweet on Tuesday night, roughly 24 hours after suffering his injury.

Thank you for the prayers. Your support is uplifting to me and my family. #SHALIEVE — Ryan Shazier (@RyanShazier) December 5, 2017

Shazier's teammate, Cam Heyward, told Jacob Klinger of PennLive.com that he has texted with Shazier since his surgery but did not disclose what was said in the conversation.

We will continue to provide more updates on Shazier's condition as more news develops.