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MMA Fighting’s Ariel Helwani and Mike Chiappetta take a closer look at the top storylines and fights heading into UFC 152, including main event where Jon Jones will defend his UFC light heavyweight title against former UFC champion Vitor Belfort. UFC 152, which will take place Saturday night on pay-per-view starting at 10 p.m. ET, also features a flyweight title match in the co-main event between Joseph Benavidez and Demetrious Johnson.