Guide to Khabib Nurmagomedov vs. Conor McGregor

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McGregor-Nurmagomedov set for a showdown (0:45)

The bad blood between Conor McGregor and Khabib Nurmagomedov goes back a long way. Now, the two are set to fight inside the Octagon. (0:45)

The wait is over. After nearly two full years without an MMA fight, Conor McGregor is set to return to the Octagon on Oct. 6 in Las Vegas to face UFC lightweight champion Khabib Nurmagomedov.\

The matchup will feature the biggest star in the sport's history against one of its most dominant fighters. Add in the fact they have bad blood from outside the Octagon, stemming from the bus attack incident in Brooklyn back in April, and you have what many consider the biggest fight in MMA history.

ESPN will be with you every step of the way covering the main event and the rest of UFC 229.

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