Ron Tatum III committed to Texas in April, becoming the second in-state product to spurn Oklahoma for the Longhorns within a month.
Then came a change of heart.
Tatum, a 6-foot-5, 269-pound four-star defensive end from Putnam City, flipped his commitment to OU on Monday, becoming new Sooner coach Lincoln Riley’s first pledge.
He announced the decision on his Twitter account early Monday