Oklahoma picked up a commitment from three-star wide receiver Marvin Mims Jr. on Thursday night.
Mims announced his decision on Twitter.
The 6-foot-1, 168-pounder from Frisco (Texas) Lone Star had been committed to Stanford since August before switching to the Sooners.
Mims is the 18th commitment of the 2020 class for OU.
![OU helmets sit on the field as players warm up before a college football game between the Oklahoma Sooners (OU) and South Dakota Coyotes at Gaylord Family - Oklahoma Memorial Stadium in Norman, Okla., Saturday, Sept. 7, 2019. [Nate Billings/The Oklahoman]](http://cdn2.newsok.biz/cache/large960_blur-e31c370cfdcdbe08944dfc63bffba4c3.jpg)