MMA Fighting's Ariel Helwani and Mike Chiappetta take a closer look at the top storylines heading into UFC 150, including the rematch between UFC lightweight champion Benson Henderson and Frankie Edgar. UFC 150, which will take place Saturday night on pay-per-view starting at 10 p.m. ET, also features a co-main event of Donald Cerrone and Melvin Guillard.
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