Boxingtalk.com has learned that the WBA purse bid for Lightweight Champion Juan Diaz and mandatory challenger Lakva Sim, scheduled for today, Friday, January 6th, in Miami has been postponed due to "travel problems." It is not clear at this time who's having issues with their travel, but Diaz's promoter Main Events has a fight card tonight in Chicago featuring Joel Julio. WBA headquarters is located in Caracas, Venezuela. No replacement date has been set as this goes to print. Stay tuned for further developments.