Brandon Jacobs, David Baas sit out

EAST RUTHERFORD, N.J. -- New York Giants running back Brandon Jacobs is waiting to be unleashed.

But Jacobs continues to experience swelling in his knee, missed his second straight practice on Thursday, and it remains uncertain as to whether he'll be able to play on Sunday against the Seattle Seahawks.

"I feel pretty good [Thursday]," said Jacobs, who suffered the injury last Sunday in Arizona. "I didn't do much. I'm just waiting until the time [the medical staff] lets me do a little running and stuff like that, but I feel good though."

Asked specifically about his status for Sunday's game, Jacobs replied, "I don't really know what they're thinking as far as that. You gotta speak to coach [Tom] Coughlin about that. ... It doesn't really matter what I'm thinking.

"It doesn't feel too bad. I'm waiting to be unleashed. That's it."

Said Coughlin: "We'll see how that goes. He didn't work [Thursday]. I think he wanted to work, but I think they thought they'd give him another day."

The 29-year-old Jacobs, who has rushed for 116 yards on 38 carries this season and also scored two touchdowns, wasn't the only Giant who didn't practice on Thursday. Center David Baas (neck) also sat out a second consecutive practice, and his status for Sunday's game is up in the air.

"[My neck] has been getting a little better," Baas said. "But I'm just gonna follow what the doctors say and take it day by day. I always wanna be out there playing, but I just need to be smart about it and see what they say."

If Baas can't play, reserve lineman Kevin Boothe would likely start in his place. The Giants signed offensive lineman Jeff Cordle off their practice squad earlier in the week as a potential insurance policy.

Rookie cornerback Prince Amukamara rode the stationary bike as he continues to come back from a broken foot, but may be out until the end of the month.

Meanwhile, cornerback Corey Webster returned to practice after missing Wednesday's session due to personal reasons. Linebacker Michael Boley (knee) did the same, but on a limited basis.

Defensive end Osi Umenyiora and defensive tackle Rocky Bernard were both limited for the second straight practice.

Defensive end Justin Tuck was limited on Thursday after missing Wednesday's practice. Coughlin said he'd have to wait and see how Tuck's injured groin and neck respond on Friday morning.

Mike Mazzeo is a regular contributor to ESPNNewYork.com.