The Facebook stream begins at 6:35 p.m. ET and features Welterweights Matt Riddle vs. John Maguire, Bantamweights Azamat Gashimov vs. Ivan Menjivar, and Featherweights Steven Siler vs. Darren Elkins.
Bone up for the fights with our handy dandy primers
Primer: Matthew Riddle vs. John Maguire
Primer: Ivan Menjivar vs. Azamat Gashimov
Primer: Steven Siler vs. Darren Elkins