Bears' starting defense doesn't hold up well vs. Bengals' backups in preseason game

CINCINNATI — With a mix of second- and third-stringers, the Bengals drove 67 yards for a field goal on their first possession against most of the Bears’ first-team defense to begin their preseason game Saturday. For a unit that has plenty of question marks three weeks ahead of the regular season, that sequence didn’t help. Bengals coach Zac Taylor held out quarterback Joe Burrow and the rest of his starters on both sides of the ball, as well as 41-year-old backup Joe Flacco, which meant…