Former Raiders coach Jon Gruden files lawsuit against the NFL and Roger Goodell

Jon Gruden, who resigned as head coach of the Las Vegas Raiders last month following reports of offensive emails, filed a lawsuit against the NFL and its commissioner Roger Goodell on Friday. 

In the suit, which was filed in Nevada's Clark County District Court, Gruden accuses the NFL and Goodell of "a Soviet-style character assassination." 

"Through a malicious and orchestrated campaign, the NFL and Commissioner Roger Goodell sought to destroy the career and reputation of Jon Gruden, the former head coach of the Las Vegas Raiders," the lawsuit reads.