While the announcement has caught many off guard, Austin, a standout at Arlington (Tex.) Grace Prep, will make an announcement during half time of the adidas Nations championship game.
Austin, a 7-foot center, who is rated as a five-star prospect, will officially announce for Baylor during the show, according to a source close to the situation.
"He's going to Baylor," the source told Scout.com.
With Austin's commitment, Scott Drew and his staff have scored their first verbal commitment of the 2012 class.
Austin is rated as the No. 2 overall prospect and the No. 2 center.