McGregor (21-3) and Nurmagomedov (26-0) will finally fight at UFC 229 in Las Vegas.
The announcement became official at the organization’s 25th anniversary press conference.
The fight capital of the world and T-Mobile Arena play host to the mega-fight on Oct. 6.
Khabib and McGregor headline the pay-per-view event, while Fox Sports 1 and UFC Fight Pass will see preliminary bouts.
UFC Fight Club members have the option to purchase tickets early via pre-sale on Wednesday at 10 a.m. P.T.
UFC.com e-newsletters subscribers will see tickets available to them on Thursday at 10 a.m. P.T.
Tickets become available to the general public Friday at 10 a.m. P.T.
Additional Combat Sports news and notes can be found on Twitter at @JoshDCarey.
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