"I think we'll get him some work tomorrow," coach Tom Coughlin said of Tuck, who has a shoulder injury.
Coughlin said "hopefully" the others would be back at practice Friday, too.
When asked if he will play Sunday in Baltimore, Tuck said, "I don't know. We'll see."
Baas, who has hip and shoulder injuries, was in the locker room after practice and said he will play Sunday. Bradshaw (knee/foot) and Snee (hip) were not in the locker room.
If they beat the Ravens and Philadelphia Eagles the next two weeks, the Giants (8-6) would guarantee themselves at least a wild-card berth in the playoffs.
But they also face the possibility of being eliminated from playoff contention this weekend.
Tuck has just three sacks this season, but is the team's defensive captain. Bradshaw is the team's leading rusher (869 yards), but missed last week's game against the Atlanta Falcons. Snee and Baas are pillars of the Giants' offensive line -- neither has missed a game all season.
On the bright side for the Giants, wide receiver Hakeem Nicks (knee) was back on the field after sitting out Wednesday's practice. Cornerback Prince Amukamara (hamstring) and safeties Kenny Phillips (knee) and Tyler Sash (hamstring) practiced for the second straight day on a limited basis.