The Joe Delaney “30 for 30″ premieres in August as a digital short

Yes, ESPN is producing a “30 for 30″ documentary on Chiefs running back Joe Delaney, who died 32 years ago today while trying to save three drowning boys. No, it won’t be a full-blown “30 for 30″ documentary. It won’t even be televised. An ESPN spokesman has confirmed to PFT that a “30 for 30″…