Oklahoma's starting center has decided to quit football because of lingering neck and back concerns.
Coach Bob Stoops announced Wednesday that Ben Habern was calling it a career after starting 30 games for the Sooners. Habern, who would have been a senior, had sat out spring practice after a career marred by injuries. He broke his left leg as a freshman in 2009 and missed part of last season with a broken right arm.
Stoops also announced that receivers Trey Franks, Jaz Reynolds and Quentin Hayes had been reinstated for the start of practice Friday but remain suspended indefinitely from games.
Stoops also confirmed that receiver Courtney Gardner and offensive lineman Will Latu, both junior college recruits, will not be joining Oklahoma this fall.