Colorado running back Charlie Offerdahl stood in front of his teammates and coaches on the first day of fall camp Tuesday and announced he's retiring from football due to a history of concussions.

Offerdahl said he's applying to dental schools, joking that he looks forward to making his teammates' grilles and veneers in the future.

Colorado running back Charlie Offerdahl is retiring from football after several concussions. On a video posted on head coach Deion Sanders’ Instagram page, Offerdahl informed the team of his decision during a team meeting on Tuesday morning.

Colorado football coach Deion Sanders revealed July 28 that he was diagnosed with bladder cancer and had his bladder removed

Colorado coach Deion Sanders says he was diagnosed with an aggressive form of bladder cancer but after surgery his oncologist has considered him cured, so he plans to coach this season

T he health of Colorado Buffaloes head coach Deion Sanders has been a major storyline throughout the course of the college football offseason. While there have not been a lot of concrete updates regarding what he was dealing with,