METAIRIE, La. | New Orleans Saints kicker Garrett Hartley is planning on serving a four-game suspension when the regular season begins because he tested positive for a banned stimulant.

Hartley said Sunday he obtained the Adderall prescription pills from a former college friend and used them to stay awake while driving at night from Dallas to New Orleans for an offseason workout.

Hartley said he learned of the failed test in a recent letter from the league, and did not plan to appeal.

The NFL considers players’ drug tests confidential and does not comment.

“My sincere apology goes out,” Hartley said. “There would never be anything that I would do that would try to hurt the team or definitely my reputation.”