Kicking off a busy summer for the Ultimate Fighting Championship, the organization heads back to Florida in mid-June with a main event rumored to include recent heavyweight acquisition Antonio Rodrigo Nogueira (Pictures).

While a fight between Nogueira and Justin McCully (Pictures) is believed to be in the pipeline, McCully's agent Ken Pavia declined to comment on the status of the bout except to say nothing is signed. Sources inside Nogueira's Brazilian Top Team camp said that the former PRIDE champion's debut UFC debut is also possible for June 23 on the finale of The Ultimate Fighter 5.

If Nogueira-McCully fails to materialize for the June 12 UFC Fight Night then Spencer Fisher (Pictures)'s rematch against Sam Stout (Pictures) could top the SpikeTV card. On the undercard, Bulgarian Jordan Radev is slated to make his UFC debut against middleweight slugger Drew McFedries. Also, Luigi Fiorvanti faces Forrest Petz (Pictures) in a welterweight tilt.