He was selected by the Chicago Bears in the fourth round of the 2004 NFL draft and with them became a Pro Bowler and played in Super Bowl XLI.
[1] In his senior year he earned All-Big 12 honors, third-team All-America recognition and was a Jim Thorpe Award semifinalist.
[6][7] The record is now held by Antonio Cromartie, who returned a missed Ryan Longwell field goal 109 yards for a touchdown for San Diego against Minnesota on November 4, 2007.
He played a pivotal role in the Bears’ National Football Conference Championship victory by recovering a fumble and also intercepting Drew Brees in the game's final minutes.
[10] The next week in Super Bowl XLI he assigned to cover Marvin Harrison, one of the Indianapolis Colts’ top receivers, and limited him to 59 yards with 3 pass deflections, while also assisting Chris Harris in an interception.
He made his return during a Monday Night Football match up against the Minnesota Vikings, in which he intercepted a pass and also helped Brian Urlacher record one by delivering a hit to Robert Ferguson.
[14] Vasher signed a two-year contract with the San Diego Chargers on March 29, 2010, but was released in September before playing in a game with the team.
He returned to UT after his NFL career, worked as a student assistant coach and earned his bachelor's degree in applied learning and development in the spring of 2014.
[1][20] In 2018, Vasher and former Bears teammate Johnny Knox became assistant coaches at Carmel High School under ex-Bear Blake Annen.