 Fighters from the light heavyweight and middleweight divisions started fighting in the UFC after the dissolution of their divisions.Also, on February 3, 2009, WEC officially announced the creation of a flyweight division and the dissolution of its welterweight division (flyweight would have been the last division under the "Unified Rules of MMA" to be activated under Zuffa, excluding Super Heavyweight).Fighters from the welterweight division started fighting in the UFC after the dissolution of their division.