Bills' Jackson says he could be out a month

BUFFALO, N.Y. (AP) Buffalo Bills running back Fred Jackson says he expects to be out for about four weeks with a groin injury.

Jackson told WGR radio Monday that doctors gave him that prognosis.

Jackson was hurt in the Bills' 17-16 win Sunday over the Vikings. Fellow running back C.J. Spiller also was carted off during the game after injuring his shoulder. His injury is potentially season-ending.

The Bills will likely have a depleted offensive backfield when they face the Jets on Sunday. Coach Doug Marrone is expected to address the injuries Monday afternoon.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide—from Peter King, Tom Verducci, Lee Jenkins, Andy Staples, Grant Wahl, and more—delivered straight to you, along with up-to-the-minute news and live scores.