HBO Boxing After Dark returns with a super featherweight title showdown between Jezreel Corrales and Alberto Machado. Plus, junior middleweight world champ Demetrius Andrade faces Alantez Fox, and Ryan Burnett takes on Zhanat Zhakiyanov in a bantamweight unification bout. Tune in to HBO on Saturday, Oct. 21 at 10:05 p.m. ET/PT.