For all intents and purposes, Jon Jones is undefeated – except for the fact that he officially isn’t. Jones’ lone defeat came in just his fourth UFC fight back in December 2009, when he was disqualified for landing illegal downward elbows on Matt Hamill in the first round of a fight he was dominating at The Ultimate Fighter 10 Finale.
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Dana White wants Jon Jones’ DQ loss overturned, Joe Rogan agrees, Matt Hamill responds – MMA Junkie