Frankie Edgar was ready to step in for Conor McGregor or Jose Aldo at UFC 189 and he's ready to intervene again at UFC 194.
Former lightweight champion Frankie Edgar was one of the UFC's standby men for Jose Aldo or Conor McGregor at UFC 189. Given the frequency of injuries in MMA, the UFC needed a backup plan for the possibility of McGregor or Aldo pulling out of the bout at the last minute. It was reigning champion Jose Aldo who withdrew from the main event due to a rib injury just two weeks' out from the main event, and Frankie Edgar was waiting for the UFC's call.