Conor McGregor vowed to make UFC rival Dustin Poirier pay for calling him insecure when they fight July 10

• Conor McGregor wants to make Dustin Poirier pay when they fight July 10.
• The two UFC lightweights conclude one of the most high-profile MMA trilogies in Las Vegas.
• "He talks some amount. He's going to pay for that," McGregor said. "It's not going to be nice."

One of the most high-profile trilogies in modern mixed martial arts is days away from its opening bell, and there's no love lost between UFC's lightweight rivals Dustin Poirier and Conor McGregor.

The 155-pound fighters, two of the best-known names in combat sports, have fought twice already - with American athlete Poirier scoring a second-round knockout win in January, as revenge for a first-round knockout loss McGregor inflicted in 2014.

They fight for a third and likely final time on Saturday, July 10 in front of a full capacity crowd at the T-Mobile Arena in Las Vegas. The match will see the winner claim bragging rights, as well as thrust themselves into a UFC title shot opportunity later in the year.

With so much at stake, it is no surprise that bad blood in this rivalry has never been far away, and this McGregor vowed to make Poirier pay for his words.

Last month, McGregor said Poirier would be "a dusty bitch" if he chose to wrestle, rather than instigate a stand-up fight. The Louisianan responded by saying McGregor's comment "reeks of insecurity."

Even though McGregor tweeted this month that three fights with him "for any man is an early grave," he said this week that Poirier is talking too much.

During an Instagram Live session with his social media followers, in a clip filmed by his YouTube channel MacLife, McGregor said: "There'll be a lot of weapons produced on the night for sure. He wants mixed martial arts, he'll get it."

Later, he added: "He talks some amount lately. He's going to pay for that, that's for sure. It's not going to be nice."

McGregor spent much of the year in Dubai having competed in the nearby city Abu Dhabi at UFC 257 at the start of 2021. He engaged in his last sparring session for his training camp July 3, after cycling 10 miles to the gym.

McGregor will now be preparing for the media and final pre-fight press conference Thursday, and controlling his weight for Friday's weigh-in.

On the Poirier trilogy Saturday, he said: "I will put on a show."