Manchester United have signed some of the biggest players in the world over the years, but new information has emerged on a player they tried to sign during Louis van Gaal's reign at Old Trafford that will leave supporters wondering what could have been.

What's the latest?

Thomas Muller has spoken out in an interview following the signing of his new contract with Bayern Munich to confirm that Man United made an "insane offer" to sign him.

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The attacking midfielder told Merkur (via Daily Mail): "Bayern clearly rejected the whole thing - despite this insane offer from United."

Paul Pogba upgrade

The Bayern Munich legend would have been a huge coup for Manchester United and would've been a better signing than Paul Pogba who re-joined the club in 2016 after the offer for Muller was made.

Muller has had a hugely impressive career with his boyhood German side, scoring 227 goals and contributing a whopping 242 assists with a goal contribution every 99 minutes, winning two Champions Leagues, 12 Bundesliga titles and a World Cup with Germany.

Even at 32 years old, the midfielder who was hailed "remarkable" by Jurgen Klinsmann, has put up incredible numbers again this season alone scoring 13 goals and delivering 25 assists in 45 appearances, an attacking output that United would absolutely love to have in their team.

Comparatively, Pogba in his time at Old Trafford is coming to an end in a few weeks when he will become a free agent, and despite winning the Europa League and league Cup with the club has been largely ineffective in his role and hasn't lived up to the expectations set on him.

Paul Scholes blasted Pogba in an interview with talkSPORT (via Daily Mail):

"I just don't think he's ever learned as a footballer, he constantly seems to make the same mistakes over and over again.

"For some reason, at Man United, it hasn't worked out. It's a big disappointment."

The Frenchman will leave the North West for the second time having provided 39 goals and 51 assists in 233 appearances with a goal contribution every 196 minutes which is a far lower output than Muller has delivered for Bayern Munich.

With that being said, supporters will likely always wonder 'what if?' should Van Gaal have successfully signed the £22.5m-rated German goal machine, as the player surely would have put them in a much brighter position than their current midfield creator Pogba who has had a disappointing tenure at the club.

AND in other news: Man Utd plot bid for "magic" £30m gem who's "faster than the train", Ten Hag needs him