Four months after entering the NFL’s concussion protocol, Carolina Panthers offensive tackle Michael Oher still has not been cleared from it, according to a source with knowledge of Oher’s situation.

Oher has progressed to the point where he is working out and Panthers coach Ron Rivera indicated this month he expects to have the veteran left tackle back for the 2017 season.

But the fact that Oher still has not been completely cleared could be the reason Panthers general manager Dave Gettleman has been non-committal in his recent comments about Oher’s future status.

“I haven’t spoken to Michael in a little bit. I haven’t texted with him in a little bit. I want to back off and leave him alone. Because we want what’s best for Michael, really and truly,” Gettleman told the Observer this week at Senior Bowl practices in Mobile, Ala.

Oher is among 130 players who were listed with concussions on the NFL’s end-of-week injury reports during the 2016 regular season, an Observer analysis showed.