#1 Conor McGregor vs Eddie Alvarez
In what was described by UFC president Dana White as the "biggest fight card" in the company's history, Conor McGregor became the first fighter in the promotion's history to hold titles in two divisions simultaneously after he defeated Lightweight Champion Eddie Alvarez at UFC 205 in 2016.
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Alvarez was originally required to make his first title defense against Khabib, but it was announced on September 21 that Alvarez missed the contract deadline for the bout, and as a result, it was expected to take place at UFC 206 in December.
Meanwhile, McGregor was previously expected to challenge for the Lightweight Title at UFC 196 in February against then champion Rafael dos Anjos. Dos Anjos eventually pulled out due to a broken foot, and the bout never materialised.
This was also the first UFC event hosted in the state of New York after the longtime professional MMA ban was revoked in early 2016. Relive this historic moment in the combat sport for free.