Jon Gruden is accusing the NFL and Roger Goodell of conducting a "malicious and orchestrated campaign ... to destroy [his] career and reputation."
It's all spelled it out in a new lawsuit, obtained by TMZ Sports, filed in a Nevada court on Thursday ... in which Gruden says the defendants obtained his private emails with his friend and former coworker Bruce Allen.
The former Raiders head coach accused the NFL of holding the emails for months ... only to leak them when they could cause maximum damage to Gruden.