Arrived in Lincoln as a highly-touted running back and is leaving a linebacker with NFL potential. He switched positions in the spring of 2008 after struggling through leg and foot injuries for 18 months. Despite his lack of experience, he earned the starting nod on the weak side and showed himself to have the mentality to play at a high level on defense. He even played in the middle during the season. His senior season did not go exactly to plan, as he played only nine games due to a suspension for violating team rules. In that time he made 51 tackles, six for loss and had four pass breakups, causing scouts to wonder what he might become with more experience.

Positives: Active linebacker with adequate speed and long arms, which he uses to wrap up ballcarriers consistently. … Attacks downhill, can go through a blocker when blitzing and is willing to throw a shoulder into a blocker to free up teammates. … Despite his lack of size, he can shed blocks on the edge and find his way through trash to the ballcarrier. … Uses his hands to fight off cut blocks. … Gives good chase down the line and hustles downfield. … Physical with running backs coming out on routes and can stay with them in the flat. … Good drop into coverage, finds the receivers in his area and has the hands to knock away passes.

Negatives: Has a safety build, is short and lacks upper- or lower-body bulk. … Runs around blocks instead of attacking them. … Nothing special in his change-of-direction agility -- best when he reacts to plays in front of him. … Gets engulfed when playing inside the tackles. … Inexperience at linebacker shows through in his lack of backfield awareness; consistently fooled by misdirection. … Must make plays on special teams to stick on a roster. … Durability and character concerns must be addressed at the Combine.

The 6-0, 230-pound Glenn suffered a foot injury late in the 2006 season and continued to be bothered by leg and foot injuries in 2007. Glenn finished the year with just 27 carries for 78 yards and a pair of touchdowns against top-ranked USC. He also caught six passes for 52 yards. Glenn saw extensive action early in the year, with eight carries each against Nevada, USC and Iowa State. He had 29 rushing yards against Nevada, totaled 20 yards on the ground against USC and added 27 yards vs. the Cyclones. Glenn also caught four passes for 46 yards against USC. Glenn carried twice at Missouri, then appeared in only one game the remainder of the year, carrying one time at Texas.

Despite missing five games because of injury, Glenn finished as NU's third-leading rusher with 370 yards, joining Lucky, Brandon Jackson and Kenny Wilson in topping 300 yards. Glenn missed the final three games of the year with a foot injury, and was also sidelined against Troy and Missouri.

Glenn made the most of his 71 carries, producing a team-high eight rushing touchdowns and averaging 5.2 yards per carry. He also showed his ability to be a workhorse in the Husker offense, producing double-figure carries four times, including a career-high 19 carries for 148 yards at Iowa State.

Glenn opened the year with 13 carries for 88 yards and a touchdown in NU's win over Louisiana Tech, then added 47 yards and a pair of touchdowns against Nicholls State. He had seven carries for 33 yards and scored the game-winning touchdown in Nebraska's 39-32 overtime victory over Kansas. A week later Glenn posted his career night at Iowa State, including two touchdowns in the Huskers' 28-14 win. Glenn had 22 rushing yards at Kansas State, then carried six times for 25 yards and two touchdowns in a 28-27 victory at Texas A&M.

Glenn finished with 131 yards and four touchdowns on 45 carries in 2005. He did not play in the first two games, but appeared in seven of the final 10 contests. Glenn lost yardage on just one of his 45 carries. He ran for 20 yards on four carries in a 7-6 win over Pitt, then played a huge role in the Huskers' near-comeback against Texas Tech, with 12 carries for 39 yards, including second-quarter touchdowns of one and five yards. He had a season-high 41 yards in a 23-14 win at Baylor. He scored his third touchdown at Missouri, then finished the season with eight carries for 18 yards and a one-yard touchdown at Colorado. He missed the Alamo Bowl with an injury.

Glenn was a star running back for Coach Wayne Mahaffey at Rusk High School for four seasons, rushing for 6,353 yards and 87 touchdowns (both school records) in his four-year career. Glenn's rushing total was the eighth-highest total in Texas Class 3A history and the 27th-most in state history, regardless of class. He capped his prep career by rushing for 1,828 yards on 238 carries and scoring 28 touchdowns as a senior. He also caught 10 passes for 159 yards and a touchdown out of the Rusk backfield and helped his team to a 7-3 record and a berth in the Class 3A playoffs.

Glenn's effort as a senior earned him second-team Class 3A all-state honors, and all-district honors for the fourth consecutive season. Glenn topped the 2,000-yard barrier as a junior, rushing for 2,006 yards and 27 touchdowns on 278 carries. His performance earned him third-team all-state honors in his class. He was an honorable-mention all-state pick as a sophomore when he racked up 1,866 yards and 25 touchdowns on the ground. Glenn was ranked as the nation's No. 28 running back prospect by Rivals.com. He committed to Nebraska after also visiting Kansas, and had offers from Texas A&M and Oklahoma State among others.

Glenn is the son of Ricy Knowlton and Erma Hamilton, and was born on Oct. 6, 1986. He is a sociology major. Glenn has volunteered his time with Nebraska's hospital visitations and with the Read to Succeed Book Drive.