UFC middleweight Antonio Carlos Junior has won four straight fights in a division where stability has yet to take hold at the top. Today, Junior (9-2 MMA, 6-2 UFC) faces off with Tim Boetsch (21-11 MMA, 12-10 UFC), one of the heaviest hitters in the octagon at 185 pounds. He doesn’t plan on exposing his chin for long. “Without a doubt, it will be very difficult,” Junior told MMAjunkie in advance of their meeting on the FOX-televised preliminary card of the event at Gila River Arena in Glendale, Ariz
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