Cutler suffered a right shoulder injury last Sunday against the
Barkley has played for the Bears only after backup
"We obviously can see what he's comfortable with, the things that come easily to him," Bears offensive coordinator Dowell Loggains said. "Some things will be a challenge. There will be some adjusting in the game, as it gets going, to see how he's seeing the defense.
"We really haven't seen him in this role in our offense as a starter with a full week of preparation, so there's always a little bit of uncertainty. But we're very confident that he's going to go out and perform well."
Barkley isn't sure what this start or any subsequent ones will mean regarding his future with the Bears, but said he'll simply draw on his past as a USC starter.
"Even high school, we were on nationally televised games and big crowds kind of through my whole life, big moments," Barkley said. "I've learned a lot from other quarterbacks in this league that I've been with who kind of had that same mentality, so that's helped."
The only Bears player officially out for Sunday's game is linebacker Leonard Floyd, who has not yet passed the NFL concussion protocol following a head/neck injury against the Giants.
Giants defensive end
Raiders cornerback David Amerson practiced for the first time this week and is expected to play Sunday against Carolina. Amerson is listed as questionable and is likely a game-time decision. … Green Bay Packers inside linebacker Jake Ryan (ankle), the team's leading tackler, was able to practice Friday and appears likely to play in Monday night game at Philadelphia. …