Burn! Piers Morgan has some HARSH words for Conor McGregor

While the rest of the world was left reeling by Conor McGregor's big news last night, it seems Piers Morgan simply saw it as prime opportunity to take a swipe at the much-loved Dubliner.

Responding to the UFC World Champion's shocking tweet which announced his retirement last night, the Good Morning Britain host slammed the decision and tweeted a less than flattering shot of the fighter.

"You're going to QUIT as a LOSER?" the always-provocative Piers asked in a sarky tweet earlier today. "Seriously?"

You're going to QUIT as a LOSER, @TheNotoriousMMA?
Seriously? pic.twitter.com/fwdg2EYKTn

— Piers Morgan (@piersmorgan) April 20, 2016

Unsurprisingly, Twitter users wasted no time hitting back at the 51-year-old star, with one writing: "Piers, how many people have died presenting breakfast TV?"

Other Twitter users were quick to suggest that Piers was only weighing in on the debate for publicity, writing; "The 1st time I've ever seen you even post about MMA. Dont act like you know what you're talking about old toad."

@piersmorgan @TheNotoriousMMA Look at it differently and u might not call him a loser, if he is retiring then he has achieved his goal 1/2

— Fight Blog (@Fight_Blog) April 20, 2016

"You are a complete idiot!" raged another. "Crawl back into your hole Morgan, don't comment on anything you know nothing about!"

We doubt Conor could care less what Piers thinks anyway…