"I'm very concerned," Kubiak said, via the Houston Chronicle. "We understand Ben's situation. I think they're both going to give us everything they can to try and play this week. I don't think we're going to know anything until later in the week, which is probably a good thing."
Tate has said he plans to play Sunday, but that's far from a certainty. Foster is showing improvement after graduating to light running Monday.
Here are the rest of Tuesday's injury updates:
- The Rams escaped a scare when running back Zac Stacy's late-game injury was diagnosed as a low-ankle sprain. The rookie broke off five runs of 10-plus yards against the Seahawks on Monday night, leading Seattle defensive end Red Bryant to the conclusion that Stacy and the Rams' offensive line "just kicked our ass."
- Seahawks coach Pete Carroll labeled Percy Harvin "day to day" with no idea if the receiver will play Sunday against the Tampa Bay Buccaneers. According to Mike Garafolo of Fox Sports, Harvin was on track to play versus the Rams until his surgically repaired hip flared up last Thursday. That being the case, it would behoove Carroll to play it conservatively with Harvin's return to game action.
- Dallas Cowboys offensive lineman Brian Waters is out for the season after injuring his triceps during Sunday's loss to the Detroit Lions. Team owner Jerry Jones announced the news on his weekly radio program Tuesday. The departure of Waters, a six-time Pro Bowl selection, opens the door for Mackenzy Bernadeau at right guard.