Mustafaa is rated as a four-star defensive end by Scout and had been committed to Georgia since the summer.
The 6-4, 235-pound standout will play defensive end at Oklahoma State where Georgia and other schools had been looking at him as an outside linebacker in a 3-4 scheme on defense.
"It's alright to tell people and release it," said Mustafaa of the news that had been rumored for close to two weeks but Mustafaa in a day and age of instant news with social networking kept himself off the recruiting grid.
"I've just been getting ready to leave for school, packing up my things, and I haven't answered the phone. We just arrived at the airport in Oklahoma City and I will be checking into my dorm this afternoon," he said.
"It mainly came down to whether I wanted to be an outside linebacker in a 3-4 defense at Georgia or play a true defensive end at Oklahoma State, and I'm more comfortable as a defensive end."
Mustafaa was committed to Georgia early and had scholarship offers from a bunch of schools including Auburn, Florida State, Georgia Tech, Kentucky (his brother plays there), Maryland, Mississippi, Mississippi State, Missouri, Nebraska, North Carolina, Virginia, and Virginia Tech.
He visited Stillwater when Oklahoma State played West Virginia on Nov. 10, and he also visited Tennessee.
A young man with a quiet personality, he kept his thought on recruiting quiet as well. His father played at Georgia Tech with current Cowboys co-defensive coordinator Glenn Spencer. Najee Mustafaa was a standout for the Yellow Jackets and went on to a successful career as a cornerback in the NFL with the Minnesota Vikings and Cleveland Browns.
Naim said the family relationship with Spencer certainly helped. "It played a good part," said Mustafaa. "Coach Spencer made a lot of trips down here in the spring and this fall."
Mustafaa had 45 tackles this season with 27 unassisted and six sacks with a fumble caused. As a junior, he had 50 tackles with 15 tackles for loss and 8 sacks. He has a 340-pound bench press and can squat 450 pounds, and he moves really well with a 4.7 in the forty.
He said he would major in business at Oklahoma State with an eye on classes in Hotel and Restuarant Management as he hopes to some day open up a sports bar and restaurant.