UFC unveils haunting, epic promo for Conor McGregor vs. Nate Diaz 2 (VIDEO)

"I know you. We've been here before. No surprises. Just settled scores."

Those lyrics featured in the new UFC 202 promo echo the exact emotions shared between Conor McGregor and Nate Diaz ahead of their highly anticipated rematch on August 20 in Las Vegas.

The UFC unveiled the haunting new promo over the weekend with the soundtrack courtesy of country artist The White Buffalo as McGregor and Diaz prepare to do battle again in just 19 days.

The rematch has been in the work for months after McGregor specifically asked for a second shot at Diaz after falling to him by rear naked choke in the second round at UFC 196.

The two fighters were originally scheduled to meet at UFC 200, but McGregor refused to engage in a media press conference and tour ahead of the bout and so he was yanked from the card and even briefly retired before returning a few days later.

Finally, the UFC found a middle ground with both McGregor and Diaz to put the fight together on August 20 at the new T-Mobile Arena in Las Vegas.

McGregor has relocated to "Sin City" for the past few weeks to prepare for the rematch while Diaz has actually enjoyed a real training camp for this fight, unlike the last time they met when he accepted the challenge on just 10 days notice.

Now the two rivals will meet again in what promises to be one of the biggest UFC cards for 2016.