Chicago Bears quarterback Connor Shaw was carted off the field Saturday against the Kansas City Chiefs after going down with what appeared to be a serious leg injury.

jmann: Connor Shaw Injury NFL Network NFL Total Access https://t.co/OP4GrFwXyW pic.twitter.com/k8jxLMLLLx — FanSportsClips (@FanSportsClips) August 27, 2016

Shaw was hit below the knee by an oncoming pass rusher after completing a fourth-down throw for a first down and fell back awkwardly, laying on his back until trainers rushed to his aid. Shaw was visibly frustrated, chewing on the cross pendant around his neck while he was being carted of.

#Bears QB Connor Shaw suffered a broken leg right above the ankle, source said. If there is no ligament damage, could be back this season — Ian Rapoport (@RapSheet) August 27, 2016

Shaw went 5-for-6 for 68 yards and a touchdown over two possessions before he left the game.

Connor Shaw being taken off on cart. Bears TV crew saw the replay but won't air it. It's that bad. pic.twitter.com/uWmfav8qpH — Dr Cork Gaines (@CorkGaines) August 27, 2016

Shaw was fighting for a roster spot behind Jay Cutler and Brian Hoyer after being picked up off waivers by the Bears on July 1. During the preseason last fall, Shaw tore several ligaments in his thumb while playing for the Cleveland Browns and missed substantial time.