Devon Still -- Cut By Bengals

12:15 PM PT -- A spokesman for the Bengals tells us per league rules, the NFL will provide health insurance for Devon Still and his family over the next 5 years -- even if he isn't signed by another team.

Now, this is legitimately sad ... the Cincinnati Bengals have cut Devon Still -- who they signed to a contract last year so his daughter Leah would continue to get health insurance to cover her cancer treatment.

Still's story became national news -- the defensive lineman was featured on "Ellen" and was honored at the ESPYs this year.

Unclear where Still will go next ... but if there's any team out there desperate for some good P.R., it wouldn't be a bad move.

Lookin' at you Washington ...

Devon issued a statement ... saying, "Have nothing but love for the Bengals organization and the city of Cincinnati. Both helped me through one of the darkest times of my life and I am forever grateful."

He continued, "It's time to move forward and see what's next #iKnowThereIsAPlanForMe"