Khabib Nurmagomedov, Nate Diaz - who's next for Conor McGregor?

Or could the mixed martial artist seek a rematch with Floyd Mayweather?

Conor McGregor celebrates his first round TKO victory againt Donald Cerrone in a welterweight bout during UFC246 at T-Mobile Arena in Las Vegas. AFP

Conor McGregor celebrates his win against Donald Cerrone. Reuters

Conor McGregor reacts following his first round TKO victory against Donald Cerrone. Reuters

Boxer Tyson Fury watched on from cage side. AFP

Conor McGregor pins Donald Cerrone against the cage. Reuters

Conor McGregor lands a kick against Donald Cerrone. Reuters

Conor McGregor is introduced before fighting Donald Cerrone. Reuters

Donald Cerrone is introduced before fighting Conor McGregor. Reuters

Conor McGregor before his fight against Donald Cerrone. Reuters

Conor McGregor moves in for a knee hit against Donald Cerrone. Reuters

Conor McGregor lands a kick to the face of Donald Cerrone. Reuters

MMA Mixed Martial Arts - UFC 246 - Welterweight - Conor McGregor v Donald Cerrone - T-Mobile Arena, Las Vegas, United States - January 18, 2020 Conor McGregor enters the arena before his fight against Donald Cerrone REUTERS/Mike Blake

MMA Mixed Martial Arts - UFC 246 - Welterweight - Conor McGregor v Donald Cerrone - T-Mobile Arena, Las Vegas, United States - January 18, 2020 Conor McGregor with Jerry Cerrone, grandmother of Donald Cerrone after the fight REUTERS/Mike Blake

MMA Mixed Martial Arts - UFC 246 - Welterweight - Conor McGregor v Donald Cerrone - T-Mobile Arena, Las Vegas, United States - January 18, 2020 Conor McGregor before his fight against Donald Cerrone REUTERS/Mike Blake

Conor McGregor’s highly anticipated return to action looks soon be confirmed, with the UFC getting together on Tuesday for a matchmaking meeting that focuses on its summer schedule.

As always, the controversial Irishman has been pretty vocal regarding his comeback, recently calling out a number of fighters. Here we look at the most likely contenders to take on McGregor next ... plus another possible opponent, in another sport.

Nate Diaz

One of the biggest fights the UFC could put together, despite four years passing since the pair fought out their rematch - and Diaz's relative inactivity in the interim. The American brawler, 35, won the first clash with a McGregor supposedly at his peak, taking the March 2016 fight at the 11th hour, while the Irishman exacted revenge in the reunion five months later. A trilogy bout has long been mooted. Diaz, though, lost last time out to Jorge Masvidal - in November last year - but would most probably jump at the chance to headline another blockbuster event with McGregor once more. As is their wont, the two foes have been trading barbs online.

Khabib Nurmagomedov

Publicly at least, this seems to be the one McGregor wants most. He lost to the Russian via a fourth-round submission in October 2018, a defeat that prompted a 14-month hiatus from the sport, before McGregor returned in January with his emphatic, 40-second win against Donald Cerrone. That fight with Nurmagomedov, who last fought in Abu Dhabi last September, became infamous for the bad blood beforehand and the brawl it sparked post-bout, and the two have since continued to chip away at one another in public. It remains the most money-spinning fight to make, and UFC president Dana White wants it, too. Currently, and perhaps crucially, Nurmagomedov doesn't, though.

Justin Gaethje

And anyway, Nurmagomedov is slated to take on Gaethje next. The American earned the opportunity against the undefeated lightweight champion by defeating Tony Ferguson at last week's UFC 249. Claiming the interim belt, White has promised a unification bout, most probably in September. However, given the recent poor health of Nurmagomedov's father, maybe that won't be possible. If so, McGregor is sure to push for a shot at Gaethje, claiming on social media last week that he would "butcher" him, even declaring he'd "wear his teeth as a necklace". The duo had been expected to meet this summer before Gaethje took the Ferguson fight. Given their respective striking abilities, it should make for a classic encounter.

Dustin Poirier

While this doesn’t feel quite the grudge match of the others, Poirier has repeatedly stated he’s open to any chance of avenging his defeat to McGregor way back when, in 2014. Then competing at featherweight, the latter triumphed via a first-round TKO. Since, Poirier has baulked up and moved up to lightweight, and has won nine of his past 12 fights (one was a no contest). He hasn’t fought since losing to Nurmagomedov in Abu Dhabi in September - another unification tussle - but has now recovered from a hip injury. McGregor questioned publicly Poirier’s career last week, with the American responding that he’d embrace the opportunity to silence him.

Or … Floyd Mayweather Jr

Right, so it’s blatantly not UFC. But, not content with cutting through his potential challengers at lightweight, McGregor - ever the self-publicist - has been teasing another boxing match with Mayweather Jr. They’ve been there, done it, when the unbeaten American won comfortably in 10 rounds in their crossover clash in August 2017. Yet McGregor has responded to Mike Tyson’s recent comments that he had in fact fared rather well on boxing debut, watching back the fight and claiming to have “outlanded” his venerable opponent. McGregor, who is said to have made upwards of $80 million (Dh293.8m) from it, rounded off his tweet with “Excited for Part 2”. A rematch is unnecessary, and Mayweather’s retired, but it would undeniably generate substantial interest – and revenue.