Gronkowski suffered multiple rib fractures and a punctured lung, knocking him out of action until a brief Week 8 appearance against the New Orleans Saints. He would leave that game after just six snaps due to back spasms, and he’s still working his way back.

Per FOX Sports’s Jay Glazer, Gronkowski said he suffered broken ribs and a punctured lung — a much more severe injury than initially reported. The #Bucs initially gave Gronkowski X-Rays following his injury and it came back negative so they put him back in the #Rams game. CT later revealed the injuries.

Gronkowski suffered the injury during last week's loss to the Rams, though he did return before the contest was over. NFL insider Jay Glazer said Sunday that the former Patriots tight end suffered four cracked ribs, one broken rib and a punctured lung when he absorbed the hit.

What is Rob Gronkowski's injury? Gronkowski told Fox Sports' Jay Glazer that he had suffered "four cracked ribs, one broken rib and a punctured lung" on that play against the Rams. Despite all that, the Bucs elected not to put him on IR.