Mike Glennon feels his grasp on the starting job slipping away with the Chicago Bears with rookie Mitch Trubisky looming.

Glennon lost the starting job to rookie Jameis Winston in 2015 with the Tampa Bay Buccaneers.

"I mean, déjà vu," Glennon said.

There are differences. Winston was handed the job by the Buccaneers at the start of training camp, while Glennon remains No. 1 on Chicago's depth chart for now.

"They just told me what it was and, 'OK, time to start getting ready,'" Glennon said. "Control what you can control. Outside of that, it just doesn't do you any good to worry about other things."