Denver Broncos defensive linemen Derek Wolfe has dealt with injuries in his NFL career. After getting yanked by the face mask in 2017 against the Carolina Panthers, he lost complete feeling in his arm. That’s a big reason why he underwent stem cell treatment and a foraminotomy to enlarge the passageway for his spinal nerve, according The Athletic’s Nicki Jhabvala.

Wolfe was the Broncos’ second-round pick in the 2012 draft, the year they acquired Peyton Manning in free agency. He has been a solid defensive lineman with the Broncos, but he has been in a slump the last two years.

There’s no doubt that the injury has hurt his effectiveness on the football field. The past two seasons, he had only 3.5 sacks. In his seven seasons in the NFL, he has made 265 tackles and 26 sacks.