Tampa Bay Buccaneers running back Doug Martin is expected to rejoin the team for offseason workouts next week, a source told Roy Cummings of Florida Football Insiders.

Martin was suspended for four games due to a violation of the NFL’s substance abuse policy in December, a sanction that will be served during the 2017 season. The running back recently completed a rehab stint for Adderall.

Prior to his suspension, Martin rushed for 421 yards and three touchdowns, adding 14 receptions for 134 yards.

Martin posted a tweet Friday, indicating he’s back to full speed.

Copyright © 2017 Score Media Ventures Inc. All rights reserved. Certain content reproduced under license.