The St. Louis Rams' rushing attack took a big hit on Sunday when Zac Stacy was forced to leave the game following a rib injury.

ESPN.com's Nick Wagoner reported that the rookie running back was listed as questionable, and he'd likely be out of the rest of the game.

Zac Stacy has rib injury. Return questionable (probably unlikely at this point).

— Nick Wagoner (@nwagoner) October 6, 2013

After the game, Stacy told Wagoner that he will be fine for next week's game and that he just had the wind knocked out of him: 

Rams RB Zac Stacy told me after game he feels fine. Said wind got knocked out of him. He says he'll be OK moving forward.

— Nick Wagoner (@nwagoner) October 6, 2013

He will play in Week 6.