Has WWE sign awat Sting from TNA? Well informed sources with World Wrestling Entertainment do not believe Steve "Sting" Borden has signed a contract. That's not to say Sting can't sign at some point, but it does not appear as though he has at the moment. It appears Sting is still a free agent as sources within TNA aren't aware of him re-signing with the company. For what it's worth, he's still listed on the TNAwebsite roster page.