In his one season at Montana State, he recorded 66 receptions for 1,023 yards and nine touchdowns.

[1] Jefferson was signed as an undrafted free agent by the Dallas Cowboys after the 2007 NFL draft.

He was promoted to the active roster the day before the season opener to serve as the team’s fourth wide receiver due to injuries at the position, but did not play.

[2] He tested positive for taking a banned supplement and was suspended 4 games.

[citation needed] Jefferson is now currently serving as a patrolman under the AGR program with the 452nd Security Forces Squadron at March ARB, California.