Complex sentence: He faced his favorite senior fighter, Samart Payakaroon who at that time was to lose the WBC Super bantamweight world title to the Australian boxer Jeff Fenech, and back to Muay Thai again, in the fight to prove who the top fighters of the real era.
Split into simpler sentences: He faced his favorite senior fighter, Samart Payakaroon who at that time was to lose the WBC Super bantamweight world title to the Australian boxer Jeff Fenech, and back to Muay Thai again. In the fight to prove who the top fighters of the real era.