It’s my understanding that Gronkowski has been dealing with significant pain these last two weeks. He’s listed on the injury report with a hip ailment, and we know of the back problems from his college days at Arizona. He had his snaps scaled back last week in the win over Buffalo (he had an uncharacteristic lost fumble in that game), and was limited throughout this past week in practice. Gronkowski is as tough as they come, but this is something I’ll be watching closely.