 Johnson was selected with the Indianapolis Colts' sixth-round pick in the 2006 NFL draft.As a rookie, he started one game, filling in for the injured right tackle Ryan Diem against Tennessee in week 13, and, additionally, filled in for Diem for a portion of Super Bowl XLI.Due to the retirement of stalwart LT Tarik Glenn, Johnson had an opportunity to win the starting left tackle job during his second season, but was beaten out by rookie Tony Ugoh.