Source: Jeremy Langford expected to miss 4-6 weeks with sprained ankle

Chicago Bears running back Jeremy Langford is expected to miss four to six weeks with a sprained ankle, a source told ESPN's Adam Schefter.

Bears coach John Fox confirmed earlier Monday that Langford sprained an ankle in the Bears' 31-17 loss to the Dallas Cowboys, but he did not provide a timetable for his return.

Langford wore a walking boot on his right foot in the AT&T Stadium visitors' locker room after the game.

Rookie fifth-round pick Jordan Howard replaced Langford and rushed for 45 yards on nine carries, plus he caught four balls for 47 yards.

The Bears on Wednesday will reevaluate running back Ka'Deem Carey, who sat out Week 3 with a hamstring injury. Chicago also recently signed tailback/returner Raheem Mostert after Carey got hurt.

ESPN's Jeff Dickerson contributed to this report.