Titan FC’s debut show on CBS Sports Network has hit a few road bumps and forced some changes to Friday’s seven-bout card. Officials today announced that visa issues have forced flyweight Pedro Nobre  and featherweight Gleristone Santos  from their respective bouts at Titan FC 27. Kenneth Porter  (4-1) has stepped in for Nobre (15-1-2) and now fights fellow flyweight Bill Friday (4-2). Additionally, Jeff Robbins  (0-0) has replaced Santos (25-4) and now meets featherweight Kalvin Hackney  (12-3).