The Buffalo Bills and the Chicago Bears battled in a joint practice prior to their August 17 preseason game, and some suggest that Caleb Williams bested Josh Allen

In his second year in the NFL, Caleb Williams has clear targets to hit. Head coach Ben Johnson has set a benchmark of a 70% completion rate. Williams has embraced the challenge, pledging to complete 70% of his passes and throw for 4,000 yards.

When he takes the field Sunday against the Bills for his first preseason action of the year, Williams won’t be significantly closer to being the Bears' long-promised franchise quarterback than he was a year ago.

Ben Johnson and staff will be looking for plenty of improvement across the board over the preseason opener but seeing their first-team offense function properly is huge.

Previewing Bears vs. Bills: how to watch, betting odds, and more ahead of the August 17 preseason clash in Chicago.