Conor McGregor vs. Khabib Is Official, Fight Set for October

[[tmz:video id="0_lb446wlf"]] Dana White says it's 100% on ... Conor McGregor vs. Khabib Nurmagomedov is set for Oct. 6 at UFC 229 in Las Vegas!!! It'll undoubtedly be the biggest fight of the year for the UFC -- Conor's first fight back in the…