Injured reserve is a possibility for Broncos rookie QB

ENGLEWOOD, Colo. (AP) — Drew Lock says he’s not sure when his sprained right thumb will allow him to throw a football again and Broncos coach Vic Fangio wouldn’t rule out placing the rookie QB on injured reserve to start the season.
Lock was injured in Denver’s preseason loss to the 49ers on Monday night when he was chased from the pocket and tripped up.
Although X-rays were negative, Lock was diagnosed with a serious sprain that will force him to miss the rest of the pre