Peterman's first start of the season came in Buffalo's 47-3 Week 1 loss to the Baltimore Ravens. All told, he went 5-of-18 for 24 yards and two interceptions in the drubbing.
Peterman then entered in relief of Allen during the Bills' 20-13 Week 6 loss to the Houston Texans. The second-year signal-caller threw his lone touchdown of the season, but he also tossed a pair of interceptions, including a game-sealing pick-six with 1:23 remaining in regulation.
For his career, the Pittsburgh product has completed 45.7 percent of his 81 passes for 360 yards, three touchdowns and nine interceptions.
According to OddsShark, the Bears are 10-point favorites against a Bills team that has dropped its last three games.