If Gronkowski can't play, the Cowboys will use Jason Witten as the HBack, something he's done in the past.
"You have to adjust certainly," coach Wade Phillips said. "Anytime you lose a player, that you only have one guy who plays that position, it becomes more of a curveball, more of a problem."
If Gronkowski is unavailable it also changes how the inactives may look for Sunday.
There's a chance Lee could see some time in the base defense and on special teams Sunday. Hamlin was a surprise inactive vs. the Texans and might sit again vs. the Titans.
"It depends on his health," Phillips said in regard on what he would do with the inactives. "It's just like most of them, if he's well enough to play then we can play him, if he's not, he can't. You have to adjust. The thing was he came up with it [Thursday], that's more of a problem than anything else."