John Stamos has openly pledged his support to Dave Coulier as he battles Stage 3 non-Hodgkin lymphoma. The actor took to social media to share photos with his former “Full House” co-star, who went public with his cancer diagnosis Wednesday on “Today.

John Stamos was a heartthrob in the 1980s when he played Blackie Parrish on General Hospital. Because of the accidental death of Lou Swenson (Danielle von Zerneck), Blackie was convicted of manslaughter and sent up the river for two years.

"Full House" stars and friends John Stamos and Dave Coulier 's bond is as strong as ever. This was made apparent after Coulier revealed on Wednesday he had been diagnosed with stage 3 non-Hodgkin lymphoma, reports People.