Curtis, who had been encouraged by OU commits to commit the last week, finally made it official and pledged to the Sooners on Monday night.
OU was in his top five back in the summer, but it never looked like anything was going to develop. And after committing to Washington, it really felt like nothing was going to materialize.
However, OU kept at it and an official visit in November helped the Sooners even more. Things swayed more toward OU when Curtis decommitted from the Huskies.
Last week at the U.S. Army All-American Bowl, the only school Curtis could talk about was OU, signifying it was a matter of when he committed and not at all about if he would.
The Curtis commitment just keeps the OU train rolling right now. Since OU's 45-31 upset victory against Alabama in the Allstate Sugar Bowl, he is the third notable recruit to pledge to OU.
It started last Friday with Jenks (Okla.) High defensive tackle Marquise Overton, considered one of the top prospects for the Class of 2015. Then Saturday was the mega-addition of Oakley (Calif.) Freedom five-star running back Joe Mixon.
Mixon and Curtis got along tremendously last week in San Antonio, and Mixon was encouraging Curtis to commit throughout the rest of the weekend.
Curtis is OU's 20th pledge for the class and the third interior linemen. OU is still without an offensive tackle commit, but the future looks bright at guard and center.