Thompson suffered a foot injury on the first day of the Sooners' preseason fall camp this month.
Bell has long been considered the prohibitive favorite to replace Jones. Stoops announced last August that Bell would be the Sooners' second-team quarterback, seemingly christening him as Jones' heir apparent.
Bell rushed for 24 touchdowns over the past two seasons out of the short-yardage “Belldozer” package, when he would replace Jones in games, take a shotgun snap and plow forward for first downs and touchdowns.
Knight, though, made a name for himself last season while redshirting, when he acted as the Sooners' opposing quarterback each week on the scout team and gave the first-team defense fits.
He passed for 2,092 yards with 27 touchdowns and only three interceptions — and recorded 943 yards and 15 scores on the ground — during his senior season at San Antonio's Ronald Reagan High School.
“Both Trevor and Blake have competed hard and both will be ready to play against Louisiana-Monroe,” Stoops said in a news release Thursday evening. “Like every other position on our team, I expect them both to continue competing for the starting job.”
George Knight sat in his office Thursday evening with OU's official Twitter feed opened on his Web browser when Stoops' announcement was posted.
He pulled out his cellphone and called Tricia, who was hosting a meet and greet at Stone Oak Elementary School with her new first-grade students.
With around 25 youngsters and their parents in the classroom, she became agitated as her cellphone kept buzzing on her desk.
“Finally I went over and saw it was my husband,” she said. “I said, ‘Hey, you can't be calling me right now.'
“‘He said, ‘Trevor was just named the quarterback.' We're very excited.”