UFC 279: What is Nate Diaz's path to success against Khamzat Chimaev?
Nate Diaz returns to the Octagon, for what could be his last appearance in the UFC, when he takes on Khamzat Chimaev in the UFC 279 main event at T-Mobile Arena in Las Vegas on Saturday (ESPN+ PPV at 10 p.m. ET, with prelims on ESPNEWS/ESPN+ at 8 p.m. and early prelims on ESPN+ at 6 p.m.).