GRAMBLING, La. -- Jason Perry-Murray scored 12 points with 12 rebounds, including a putback at the buzzer, lifting Grambling to a 79-78 win over Texas Southern on Monday night.
Texas Southern had taken the lead on a 3-point play by Donte Clark with six seconds to go.
Shirman Thomas led Grambling (7-12, 3-3 Southwestern Athletic Conference) with 27 points. Clarke had 27 points for Texas Southern (3-15, 3-2) with Trayvon Reed adding 14 with 11 rebounds.
Texas Southern scored the first nine points of the game and led 42-39 at the half. The lead never reached double figures for either side.
Texas Southern had 10 fewer field goals -- 21 to 31 for Grambling -- but also scored 20 more points at the foul line -- 33 of 43 to Grambling's 13 of 18.
Mannion, who recently reclassified and is ESPN's No.11 overall player in the class of 2019, chose Arizona over Marquette.
He'll fit in with Sean Miller's plans for a faster tempo on offense.
The cream of the crop of American high school basketball will congregate in Colorado Springs from Oct. 5-7, as USA Basketball unveils its newly expanded Junior National Team minicamp in collaboration with the NBA, NCAA and NBPA.