Denver Broncos running back Javonte Williams is feared to have suffered a serious knee injury, a source told NFL Network's Ian Rapoport.
Williams was hurt on a tackle by Las Vegas Raiders defensive end Maxx Crosby in the third quarter of Denver's 32-23 loss on Sunday. He was carted to the locker room before being officially ruled out minutes later.
He was on crutches after the contest, according to Jeff Legwold of ESPN.
Broncos head coach Nathaniel Hackett said postgame that Williams and pass-rusher Randy Gregory will get MRIs on Monday. Gregory also injured his knee Sunday.
Williams finished the night with 10 carries for 28 yards. He has played in every game since being selected in the second round of last year's draft.