After Tampa Bay Buccaneers linebacker Quincy Black's violent helmet-to-helmet collision with Ryan Mathews last November, head coach Greg Schiano's hope was that the neck injury would not be career-threatening.

Three months and one surgery later, Black's future with the Bucs and the NFL remains in doubt.

"You generally like to walk out of any surgery and say that it was a successful surgery, but the reality is, that because of the nerve damage and the nerve grafting and everything, you won't know if it's successful or not for several months," general manager Mark Dominik told the Tampa Tribune on Thursday.

"It's a tough injury and a unique injury and ... it's hard for us to have any timetable or feel for it."