A BELLATOR Flyweight World Championship rematch between  Liz Carmouche  (17-7) and the woman she defeated for the title,  Juliana Velasquez (12-1), is set for the co-main event slot of  BELLATOR 289  on Friday, Dec. 9 at the Mohegan Sun Arena in Uncasville, Conn.   The five-round championship contest has been added to a card that already features the continuation of the BELLATOR   Bantamweight World Grand Prix Semifinals as  Raufeon Stots  (18-1) defends his interim championship opposite fast-rising star, the No. 6-ranked  Danny Sabatello   (13-1), and No. 2-ranked  Patchy Mix   (16-1) takes on No