Colorado football coaches expect at least two mid-year enrollees to be added to the roster in the next three weeks and both have a deep history with the program.

Offensive lineman Alex Kelley from Vista, Calif., signed with the Buffs last February as part of the 2011 recruiting class, but he broke a bone in his left foot in a non-football related accident during the summer and decided to grayshirt this fall, delaying his enrollment to January.

Kelley's father, Karry, played tackle for the Buffs in the late 1970s and was a starter at right tackle as a senior in 1979.

Clay Norgard, the son of former CU offensive lineman Erik Norgard, was the first recruit to commit to coach Jon Embree in the 2012 cycle, doing so in February.

Norgard graduated from Mountain Vista High School in Highlands Ranch this month and is ready to start college a semester early.

Colorado coaches were hoping to receive a commitment from Taylor McNamara, a highly regarded tight end prospect from San Diego, but he committed to Oklahoma this week. McNamara plans to enroll for spring semester classes in Norman and would have done the same in Boulder had he chosen CU.

It's still possible Kelley and Norgard could have company from other mid-year enrollees, but at this point they appear tobe the only two at CU this year.

NCAA rules allow programs to count players who enroll at the mid-year point backward to the previous recruiting class, as long as the program had room in that class.

The rule will allow CU to sign a full allotment of 25 additional players in the 2012 cycle on Feb. 1.

Norgard, who has played multiple positions in high school on defense, already has discussed a new position with CU coaches. He will be Embree's first scholarship fullback.

The position was phased out of the program under former coach Dan Hawkins. Norgard recently told recruiting services that CU coaches already have told him he will play as a true freshman.

"I just love to play the game," he said in an interview with Scout.com this month. "I played fullback in high school some. I know how to block and I think my speed from linebacker will carry over."

Colorado used converted linebackers Evan Harrington and Tyler Ahles at fullback during Embree's first season this fall. Harrington eventually proved to be more effective, allowing Ahles to return to defense late in the season.

Norgard hopes to be blocking for tailbacks and occasionally catching passes out of the backfield for four years.

Kelley will come to Boulder hoping to compete for playing time at center, but more likely will settle for a backup role in his first season as a Buff.

He is itching to get back on the football field after sitting out this season because of his injury.

Kelley said he would have come to CU this year a true freshman if not for breaking his foot.

"It was horrible just watching, because I watched all the Colorado games every weekend, and just seeing them going through what they went through I just wish I could have been there and at least try to contribute somehow with what I could bring," Kelley said. "But I think this is good for me because it gives me a chance to grow up a year and get a year stronger and everything."