John Stamos has finished his rehab stint and is ready to get back in the ring.

"I'm back! Took a month to take care of things. Healthy. Feeling grateful for the love & support of family & friends," Stamos tweeted on Friday.

He also shared a photo of him working a punching bag and wearing a t-shirt that read "Win Blackie Win," a reference to his General Hospital character.

The "Full House" star checked into a rehab facility for substance abuse earlier this month following his DUI citation on June 12. He's scheduled to appear in court on Sept. 12 for the charge.

Lori Loughlin also reached out to her former on-screen husband on Twitter shortly after he tweeted his comeback.

"Welcome home @JohnStamos!! Can't wait to see you on Monday! #FullHouse," she wrote, adding a heart emoji.

The "Fuller House" cast, which includes all the original stars except the Olsen twins, sat down for their first table read on July 17. Stamos was noticeably absent as everyone else posted photos of their scripts to Twitter or Instagram.

 And we're back! Same sideburns- different decade. #FullerHouse #Netflix.

A photo posted by John Stamos (@johnstamos) on Jul 25, 2015 at 11:09am PDT

He has since snapped his own photo from the set of the "Full House" spinoff wearing his trademark sideburns.

Stamos will also get back to work on his Fox comedy, "Grandfathered," which premieres on Sept. 29. "Fuller House" will start streaming on Netflix in 2016.