Trubisky spoke with the media on Friday, as the Bills had joint practice with the Bears in Chicago, and was asked what advice he would give to second-year quarterback Caleb Williams - his answer didn't disappoint.

Caleb Williams and the Chicago Bears starters will play in Sunday’s preseason game against the Buffalo Bills. Here are four things to watch for.

We break down Friday's joint practice between the Bears and Bills — how the two starting quarterbacks fared and Mitch Trubisky's return.