Walker (groin) was a limited participant in Friday's practice.

After a second consecutive limited practice session Friday, Walker is officially listed as questionable ahead of Sunday's game against the Titans. The Bears' defensive line could be thin in Week 1, as Montez Sweat (toe) and Darrell Taylor (foot) are also listed as questionable. Expect rookie Austin Booker to see more snaps on Chicago's defensive line with Walker, Sweat and Taylor all potentially missing Sunday's contest.