"With their ground game already sputtering, the Giants listed running back Brandon Jacobs as doubtful for tomorrow's game against Seattle.

Jacobs sat out practice yesterday, amid reports he had a sprained medial collateral ligament.

Jacobs first got hurt against Arizona, an injury the Giants are still calling "knee swelling." But ESPN's Adam Schefter reported it was a sprained MCL, and a Big Blue source acknowledged as much.

With Jacobs all but ruled out, Ahmad Bradshaw should get the bulk of the carries, backed up by D.J. Ware.

"I thought he would [have practiced by yesterday], but that hasn't been the case," said coach Tom Coughlin, whose Giants are 24th in the NFL in rushing yards per game (87.5) and 29th in yards-per-carry (3.3). "I don't know if it's a setback, but there is some swelling and [it] really has not subsided."

Jacobs rode a stationary bike at the start of yesterday's practice, walking over and showing general manager Jerry Reese how he suffered the injury on a hit. He left the practice field, and departed the Timex Performance Center without addressing the media.

Jacobs -- who had 2009 surgery on a torn meniscus in his left knee, but says this new injury is to his right knee -- has carried 38 times for 116 yards and two touchdowns this season. The Giants were held to just 54 yards on 24 carries last weekend in Arizona. "