Mitch Trubisky might have created a quarterback controversy in Chicago.
Trubisky threw for 166 yards and led three scoring drives after Mike Glennon struggled, only to have the Denver Broncos score two long touchdowns in the closing minutes to beat the Bears 24-17 in the preseason opener on Thursday night.
Though the team has insisted Glennon is the starter, the prized rookie did his best to ramp up the debate.
"Our depth chart is not going to change after one game, particularly a preseason game," coach John Fox said. "That's a really good defense our first unit went against, probably one of the top three defenses in the league.
"You have to...