Worst case scenario is an interception and a fumble/steal? and TD. Even if they some how ruled he intercepted the ball he never went down and Gabe took the ball from him in the endzone which is a TD.
Looks like they might be able to get CMC cheap, Barkley probably isn't even available. He's a leader in their locker room at this point they're not trading him while they're 4-1.