Mitchell Trubisky insists he is one motivated quarterback.

He comes into a make-or-break season locked in a competition with former Super Bowl MVP Nick Foles for the Bears' job, knowing his future as a starter in Chicago and maybe anywhere else is on the line.

"For me it's very motivating," Trubisky said Friday. "You're always going to have people writing you off. It's got to light a fire under you, which it has for me, and I'm just trying to prove everybody wrong and prove my teammates right. There is just so much hard work that goes into it. And for people who write you off, I mean, that definitely motivates you in a way that you just want to go out there and play as best you possibly can. So I'm definitely fired up."