As of now, Bills quarterback Thad Lewis has a 50 percent chance to play against the Chiefs on Sunday, according to head coach Doug Marrone.

Lewis missed Thursday's practice as he continues to recover from a rib injury. He'll likely need to practice Friday in order to play Sunday.

On Wednesday, the website Pro Football Talk reported that Lewis would be able to play. Funny enough, Marrone said he hope the site has good information on that.

“I’m hoping the league source is right," Marrone said, via ESPN.com. "Because I really don’t know right now. It’s 50-50. Trust me."

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Aaron Wilson covers the Ravens for The Baltimore Sun.