LeJeune was waived by the Dolphins on August 29, 2006. He was re-signed to the team's practice squad on October 18, but released on October 24. He re-signed again to the practice squad on October 30 and was promoted to the active roster on November 22. LeJeune played at Detroit and recorded one tackle on November 23. He was released on December 2 and signed to the practice squad on December 6. He was activated again on December 26 and played in the season finale at Indianapolis on December 31. LeJeune had a total of one tackle in two games played.