It's been quite a summer for Conor McGregor, as the UFC Lightweight Champion has made a lot of money by surviving until a 10th round TKO in his super-fight against Floyd Mayweather, one of the greatest boxers of all time.However, Notorious has not fought in UFC since he defeated Eddie Alvarez to win the UFC Lightweight title in the main event of UFC 205 at Madison Square Garden in November last year, and his next fight with the promotion is yet to be scheduled.This hasn't stopped UFC fans from speculating who could be the next opponent for McGregor inside the Octagon, as two names constantly spring to mind; Nate Diaz and Tony Ferguson.Nate Diaz has his right to fight the Irishman as McGregor and many UFC fans have been demanding a third fight between the two in order to make their feud a trilogy. Diaz won the first fight between the two at UFC 196, but Conor won the second contest at UFC 202, meaning a third deciding fight is needed to bring an end to this feud.Tony Ferguson earned his right to fight Notorious after he defeated Kevin Lee via a triangle choke submission in the third round of their contest earlier this month at UFC 216 to become the interim UFC Lightweight Champion. A unification fight is therefore needed between Ferguson and McGregor to truly decide who is the UFC Lightweight Champion.Dana White was absolutely determined to clarify that there was only one man in contention to face McGregor next, and unfortunately for some UFC fans, it isn’t going to be Diaz.The UFC president said that Conor has to fight Tony as the Lightweight Champion as he is the interim Lightweight Champion, so that's the fight that makes sense.

Although McGregor is the current favourite to win this fight, Ferguson has an unpredictable style that should make this fight very entertaining to watch. All we have to do now is wait for a fight date to be confirmed, which could be later this year in December at UFC 219 in Las Vegas.