Nate Diaz headlines UFC 279 on Saturday in what is expected to be his final fight in the UFC. The often polarizing Diaz (20-13 MMA, 15-11 UFC) takes on Khamzat Chimaev (11-0 MMA, 5-0 UFC) at T-Mobile Arena in Las Vegas. It’s the final fight on his contract. He’s a huge underdog against Chimaev, who is a 14-1 favorite at Tipico Sportsbook. In recent months – nay, years, even – Diaz has had plenty of public gripes with the UFC, but it’s unquestionable the fan favorite will have masses follow him no matter where he winds up after Saturday, even…