Tonight, Former Lightweight Champion Frankie Edgar, attempts to be one of the few men to ever hold a belt in two different weight classes as he faces one of the most devastating Featherweights in the history of the sport, UFC Featherweight Champion José Aldo Aldo.
In the co-main event Former Light Heavyweight champion and Ultimate Fighter winner Rashad Evans, returns to action against Pride Veteran Antônio Rogério Nogueira.
Also on the card Former K1 GP, Dream Heavyweight and Strikeforce Heavyweight champion Alistair Overeem will face Antonio "Bigfoot" Silva with a possible shot at the Heavyweight title on the line.
Rest of the Main card is as follows:
Jon Fitch vs. Demian Maia
Joseph Benavidez vs. Ian McCall
Evan Dunham vs. Gleison Tibau
Jay Hieron vs. Tyron Woodley
Bobby Green vs. Jacob Volkmann
Yves Edwards vs. Isaac Vallie-Flagg
Chico Camus vs. Dustin Kimura
Edwin Figueroa vs. Francisco Rivera
And if you have a spare 45 minutes the countdown show is well worth watching too -> http://youtu.be/CBNQI5hJDeg