The Buffalo Bills are getting set for their second preseason game, which will take place Sunday night against the Chicago Bears. Ahead of the second exhibition game, though, the Bills and Bears had a joint practice on Friday, and one very notable nugget that Bills fans will love has emerged from that practice.

The Chicago Bears played host to the Buffalo Bills for a joint practice Friday at Halas Hall. Here are nine observations from another busy day in Lake Forest.

The Bears' starters will make their preseason debut Sunday and get valuable reps in joint practice. Here are five critical competitions.