Conor McGregor
McGregor became the first man in UFC history to hold two belts when he beat Eddie Alvarez. Getty

Nate Diaz has responded to Conor McGregor's jibe aimed at the entire UFC locker room with a telling reminder of how their first meeting at UFC 196 ended.

McGregor, 27, has been riding high since making history at UFC 205, when his second round stoppage victory over Eddie Alvarez saw him become the promotion's first double-champion.

With the featherweight and lightweight world titles now both around his waist, the Dubliner is enjoying his status as the sport's undisputed no. 1, posting a picture of himself talking into a wad of cash as if it was a telephone with the caption: "Hello, I'd like to order so competition please I don't have any."

One man who can dispute McGregor's suggestion he is untouchable is Diaz, who has now reminded the Irishman he is the only one to have beaten him in UFC in an Instagram post of his own.

After Rafael dos Anjos pulled out of his fight with 'The Notorious' in March, Diaz took his place with just 12 days' notice, going onto shock the UFC universe as he made McGregor tap out with a brutal rear-naked chokehold.

That victory sparked the promotion's most explosive rivalry of 2016, culminating in a rematch at UFC 202 where McGregor secured the win after a brutal, bloody battle.

Shortly after his historic win in New York, McGregor announced his plans to take some time out of the Octagon, with his first child expected in May. But despite his absence, who his next opponent will be has continued to dominate the UFC agenda.

While McGregor appears to have begun laying the groundwork for a welterweight showdown with Tyron Woodley, his striking trainer Owen Roddy believes a third match with Diaz remains an option.

"Maybe [Tyron] Woodley," Roddy said, speaking to Ariel Helwani on the MMA Hour podcast. "For me, for him to go up and compete for a third belt [the welterweight title], maybe Woodley. [Nate] Diaz again is another great one. I think it is what fans would want to see. They want to see something special, again, the Diaz fight again is special. The Woodley fight is special."

Hello id like to order some competition please I don't have any

A photo posted by Conor McGregor Official (@thenotoriousmma) on

McGregor took aim at the rest of UFC with this post on Instagram.

Don't forget 😎

A photo posted by natediaz209 (@natediaz209) on

Diaz was quick to remind McGregor who it was that made him tap eight months ago.