The Ultimate Fighting Championship goes back home to "Sin City." The main event of UFC 320 features Russian Magomed Ankalaev (21-1-1) defending his light heavyweight title against Brazilian fighter Alex Pereira (12-3-0) in a marquee matchup. UFC 320: Ankalaev vs. Pereira 2 takes place at T-Mobile Arena in Las Vegas, Nevada on Saturday, Oct. 4. [...]