2. A new BMF champion will be crowned
The main event of the evening will be for a championship but not a conventional one. Dustin Poirier and Justin Gaethje's lightweight bout will be for the BMF title. The championship was first introduced in 2019 as Jorge Masvidal and Nate Diaz went to war at UFC 244. Masvidal won that bout (as well as the title) and remained the one and only BMF Champion until his retirement at UFC 287. However, the title did not retire and is ready to have a new holder at UFC 291 on Saturday. This will be a piece of history as only the second-ever BMF champion will emerge from Poirier vs. Gaethje.
1. Dustin Poirier vs. Justin Gaethje 2
The promise of a new BMF champion is not the only thing that the main event has to offer at UFC 291. The Dustin Poirier vs. Justin Gaethje fight is so intriguing because it's the rematch of their first meeting in 2018. The two went to absolute war with each other and put on a fight of the year contender. Poirier picked up the victory with a fourth-round TKO and, since then, the two have gone on to build themselves up further in the lightweight division whilst avoiding each other. Now, the time has come for them to meet once more and, with a championship involved, this could breed an environment for an equally dramatic fight or an even better match-up.