BJ Penn is going into UFC 123 this weekend as a man looking to find himself. He has lost his last two fights, both to Frankie Edgar, and wants to get back into championship contention. He will take on Matt Hughes, who has been part of two of the more notable fights in Penn's career. Before Penn can move forward it is time for us to look back at 10 of the moments that have defined BJ Penn's career in MMA.

Begin Slideshow