Countdown to UFC 183 MMA January 31, 2015 A-Front4 w/ words, MMA Shows, UFC Countdown to UFC 183 with former MW Champ Anderson Silva vs former Strikeforce / WEC WW Champ Nick Diaz, Tyron Woodley vs Kelvin Gastelum and Joe Lauzon vs Al Iaquinta. Watch the fights Saturday January 31 on PPV.