India, Sept. 23 -- The Chicago Bears are dealing with uncertainty at quarterback heading into Week 3, with Caleb Williams already considered week-to-week after suffering an injury that has made his availability against the Philadelphia Eagles doubtful. The situation became more complicated after the team confirmed that Tyson Bagent had entered the NFL's concussion protocol.

With both quarterbacks facing availability concerns, veteran Case Keenum could now move into position to take the field. Listed third on the Bears' quarterback depth chart, Keenum could be called upon against Philadelphia in Week 3.

As his chances of making an appearance increase, here is a closer look at Keenum's career, including his age, college background, NFL ac...