One of the biggest preseason delights for Chicago has been defensive end Austin Booker, who has four sacks already. After picking up his fourth sack of the preseason in this game against Buffalo, Booker met with the medical staff and then was later ruled out with a knee injury.

The Bills take on the Bears in preseason game No. 2. Stay right here for live updates all afternoon and evening.

Sunday night, he caught three passes for 49 yards, including an out route that he turned up the right sideline, juking past Bills cornerback Dorian Strong.

NFL Sunday preseason features the Chicago Bears taking on the Buffalo Bills in the late game. This game kicks off on Sunday, August 17, at 5 p.m. PT/8 p.m. ET (6 p.m. MT) with a live broadcast on NFL Network. WATCH NOW: Chicago Bears vs. Buffalo Bills live for FREE with DIRECTV (free trial).

The Bears host the Bills in NFL preseason action at 8 p.m. ET on FOX, with Chicago's starters expected to take the field.

Starter, the iconic sportswear brand that dominated the '90s, has teamed up with retro apparel powerhouse HOMAGE to release a new line of NFL throwback jackets.

Jaylon Johnson made some progress in his injury recovery as the Bears finish up their preseason before the regular season starts.

Camp is moving slowly but surely for the Chicago Bears. Ian Wheeler is one of the players to keep an eye on as things progress.