Joe Rogan says Conor McGregor needs a "tune-up" fight before Kamaru Usman - here are 5 potential opponents

#2. Tony Ferguson

Tony Ferguson vs. Conor McGregor is a matchup the fans would love to see.

Tony Ferguson was once one of the most feared fighters in the UFC lightweight division. However, since his brutal technical knockout loss to Justin Gaethje at UFC 249, 'El Cucuy' just hasn't been the same fighter. After three straight losses inside the octagon in fights where he was dominated, Ferguson seems to have his back against the wall at the moment.

He is currently slated to take on Michael Chandler next. If he loses, one would imagine the 38-year-old future Hall-of-Famer's days are numbered in the promotion. The promotion could consider booking him against Conor McGregor as long as he is around.

Fans would love to see them collide inside the octagon. Both McGregor and Ferguson are known for their outspoken nature, and the build-up to the fight would be incredible. Ferguson could also benefit from not going through a rigorous weight cut to make 155lbs if the fight takes place at 170lbs.

'El Cucuy' is known for his durability, but the beating he took at the hands of Gaethje is bound to have weakened his ability to take a hit. If your chin is vulnerable and you're going up against one of the best strikers in the game, there's only one possible outcome.

#1. Nate Diaz

Nate Diaz and Conor McGregor went to war at UFC 196 and UFC 202.

Conor McGregor and Nate Diaz's rivalry will live on even after both fighters retire from the sport of MMA. With just one fight remaining on the Stockton native's current contract, the UFC could book a trilogy fight between the pair.

There's been speculation that the promotion was reluctant to book a matchup between Dustin Poirier and Nate Diaz because they want the Diaz-McGregor trilogy to be the 37-year-old's last fight inside the octagon.

Apart from the fact that the fight will make sense from a business perspective, there are other reasons why these two should fight. Firstly, the pair have one win over one another, and the rivalry needs to be settled. Secondly, a durable fighter like Diaz will test McGregor's ability to fight in the championship rounds.

Conor McGregor's last three fights haven't gone beyond two rounds, and it would be great for him to get some valuable minutes inside the cage against a veteran like Diaz. It would prepare the Irishman better for a potential war with the welterweight champion Usman down the line.