Fathom Events and UFCÂ® invite you to experience the fight of the year, UFC 183: SILVA vs. DIAZ. The pulse-pounding action will be broadcast LIVE from the MGM Grand in Las Vegas to select movie theaters nationwide on Saturday, January 31 at 10:00 p.m. ET / 7:00 p.m. PT. Making his return to the OctagonÂ®, former middleweight champion and future Hall of Famer Anderson â??The Spiderâ? Silva will take on former STRIKEFORCEÂ® welterweight champion Nick Diaz in a super fight that will keep you on the edge of your seat. In the co-main event, welterweight contender Kevin Gastelum will face off with the ultra-dangerous Tyron Woodley.