'This One Hurts' - Europa League's Official Twitter Account Accidentally Trolls Man United

The Red Devils posted a series of pictures of their star players returning to training on social media. 

And the official Twitter account of the Europa League got their hands on a picture of Fernandes and shared a tweet to their 9.7 million followers. 

They uploaded a picture of Man United's Portuguese maestro, accompanied with the caption: "Pre-season starts now."

Of course, it wasn't intended to mock Man United - but fans online felt like it was a dig.

One tweeted: "Being massively trolled here mind."

A second wrote: "Admin knows what he’s doing here."

A third added: "I thought this was a fake account. It is not."​

Another commented: "Everyone expected this to be a parody didn’t they."

Man United will appear in the Europa League after failing to qualify for the Champions League last season.

They finished in sixth place in the table, 13 points adrift of fourth-placed Tottenham. 

Erik ten Hag, who was appointed as Man United's permanent manager in April, is tasked with rebuilding the club.