The academy graduate left Old Trafford to join Juventus as a free agent in 2012, only to return four years later for a then world-record fee of £89m.

But Pogba has had a topsy-turvy second spell with United, who he will leave for nothing for second time when his deal expires this month.

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"The club can announce that Paul Pogba will leave Manchester United at the end of June, upon the expiry of his contract," United said at the start of a lengthy send-off statement on the club website.

"Everyone at the club would like to congratulate Paul on his successful career, and thank him for his contributions to Manchester United.

"We wish him all the best for the next steps on a remarkable journey."

Pogba scored 39 goals in 233 first-team appearances for United, who he first joined from French club Le Havre in 2009.

A key part of the triumphant FA Youth Cup side of 2011, the midfielder joined Juventus the following year and enjoyed a medal-laden time in Turin.

Pogba returned to Old Trafford in 2016 but struggled to live up to the billing, with EFL Cup and Europa League triumphs in his first campaign back at United proving to be his only silverware.

The 29-year-old - a World Cup winner with France in 2018 - is now leaving United on a free transfer for the second occasion, with a return to Juventus potentially on the cards.

Paris Saint-Germain, Real Madrid, Barcelona and Manchester City are other clubs to have been linked with him in recent months.

United said in a statement confirming his departure: "Everyone at the club would like to congratulate Paul on his successful career, and thank him for his contributions to Manchester United.

"We wish him all the best for the next steps on a remarkable journey."

Pogba at Man Utd: Mismanaged or a mistake?

Sky Sports' Dan Sansom:

It was a deal that caused a social media frenzy. Emerging from the shadows with a red devil marked into his hair, Pogba's Manchester United announcement video was followed by a sponsored music clip featuring Stormzy. The hype over #POGBACK had begun.

It was supposed to be the start of something special. A new era for a club still struggling to find its feet after the retirement of Sir Alex Ferguson three years earlier.

But Pogba has been unable to inspire United to former glories. The 2017 League Cup and Europa League are the only trophies of his six-season spell.

After being booed off the pitch against Norwich and suffering a calf injury at Liverpool in April, Pogba will now leave the club for a second time. He cannot solely be blamed for United's lack of success, but his departure signals an underwhelming end to a transfer that promised so much.

As Europe's biggest clubs prepare to pounce, Sky Sports looks at Pogba's second United career.

How did it go so wrong? Was he mismanaged? Or was it Pogba who made the mistake?

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Who will be on the move this summer when the transfer window opens on June 10 and closes at 11pm on September 1?

Keep up-to-date with all the latest transfer news and rumours in our dedicated Transfer Centre blog on Sky Sports' digital platforms. You can also catch up with the ins, outs and analysis on Sky Sports News.