UFC superstar Conor McGregor sent the fighting world into meltdown on Tuesday night when he posted an apparent retirement announcement onto social media.
As you might expect, considering his status as the organisation's top draw, the tweet (seen below) left everyone unsure of just how to react and a mixture of shock and skepticism was the norm.
That wasn't the case for one of McGregor's biggest rivals in UFC, however, Jose Aldo. The Brazilian fighter posted, then quickly deleted, his own simple but offensive tweet in response to The Notorious One's revelation.
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Taking to his official Twitter account, Aldo made it very clear where he stood on the idea of McGregor leaving the business. Huffington Post blogger Omar Baddar was the man with the fast fingers able to capture a screenshot of the tweet before it was deleted:
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Even for those uninitiated with the emoji, it is pretty hard to misinterpret that. Essentially a 'Peace out, F*** you' for McGregor, Aldo wasn't willing to wait for any confirmation or subsequent reports that may have made his message seem a little OTT.
It's not clear why the 29-year-old chose to take down the tweet, but it is no longer there when you view his official account.
Aldo and McGregor have had an ongoing feud ever since it was announced the pair would be fighting at UFC 194. Of course, we all know what happened there - the Irish fighter taking just 13 seconds to defeat his opponent in emphatic style.
Since then, the two fighters have continued their war of words and have taken regular shots at each other despite not meeting in the octagon since December 2015.
Aldo wasn't the only UFC fighter to respond to last night's shock announcement. Nate Diaz, McGregor's slated opponent at UFC 200 and the man who could now be the last person to fight the Irish star, took a more comical approach.
Also using Twitter, Diaz joked that he too was going to be retiring.
In terms of what happens next, the UFC have since confirmed that McGregor will not be fighting at UFC 200 but there is no word from the man himself on his long-term future in the sport.
Fighting fans, and even perhaps Aldo himself, will be hoping that they haven't seen the last of McGregor in the UFC.
With Aldo having been ensured of the opportunity to fight McGregor later this year, if he overcomes Frankie Edgar at UFC 200, the Brazilian would surely relish the opportunity to avenge his embarrassing 2015 defeat.