The decision concludes an incredibly wild week of rumors running rampant all over the place about Hurts, about OU and about the quarterback position.
NCAA rules allow players to play immediately as grad transfers, but Big 12 rules allow the Sooners to prevent a player from playing immediately when transferring within the conference.
Lincoln Riley's Sooners are in the market for a new starting QB with Heisman Trophy victor Murray leaving the school for either the Oakland Athletics or an National Football League career.
As Nick Saban's starter in 2016 and 2017, Hurts led the Crimson Tide to back-to-back national championship games - although Clemson won the first, and his first-half struggles in the latter against Georgia led Saban to bench him in favor of Tagovailoa.
Rattler had previously been told by Oklahoma's Lincoln Riley that he wasn't taking any transfer quarterbacks.
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Hurts entered his name into the transfer portal on January 9, after the Crimson Tide were blown out by Clemson, 44-16 in the national championship game. "I'm very excited to have this opportunity and I'm excited for the journey ahead".
And just like that, Oklahoma has its quarterback for the 2019 season. The Houston native elected to remain with the team last season despite losing his starting job to Tua Tagovailoa.
Oklahoma must replace Kyler Murray - who is set to begin either a professional football or baseball career - four starting offensive linemen and an All-American receiver.
The university had meant to take advantage of an NCAA rule which would keep Kendall from being immediately eligible to play, sources told ESPN's Jake Trotter, but ultimately opted to grant the quarterback a waiver later in the afternoon.
Junior Max Bortenschlager, who took over when both Pigrome and Hill were injured in 2017 and started eight games, missed most of the 2018 season after undergoing ankle surgery.