QB scores based off the time the were in game would have both Tyson Bagent (-0.50) and Austin Reed (-0.25) finishing with “Average” scores for a half, while Case Keenum (3.45) notched a “Fantastic” grade for his quarter and a half of play.

The Chicago Bears kicked off the preseason against the Miami Dolphins. Here's a look at the PFF grades following their 24-24 tie.

Quarterback Tua Tagovailoa had an efficient start to the preseason Sunday and the Miami Dolphins and the Bears finished in a 24-24 tie in Ben Johnson’s Chicago coaching debut.