The money in football is extortionate.
Clubs do everything in their power to be successful and one of the best ways to achieve that is by spending money.
And it's the players that benefit massively.
Players are given silly money by football clubs to entice them to sign.
- Every PL club's most valuable starting XI this season
- Best ever starts to a season and what happened
- Aguero overtakes Henry as PL's highest foreign goalscorer
So United reacted by giving him a £375,000-per-week contract, making him the best paid goalkeeper in the world.
But how does his wages compare to the other best paid Premier League players?
Spotrac have details on how much every player in England's top tier earns.
We've looked at their data and listed the Premier League's highest three earners for every position.
1. David De Gea - £375,000-per-week
2. Kepa Arrizabalaga - £150,000-per-week
3. Kasper Schmeichel - £130,000-per-week
Not only is De Gea the best paid goalkeeper in the world, he's also earning the most out of every player in the Premier League.
He hasn't been justifying his wages, though, having made more errors leading to a goal than any other Premier League player since the start of last season.
The 29-year-old earns a staggering £225,000-per-week more than second place Kepa, while Schmeichel earns a cool £130,000-per-week.
Interestingly, neither Alisson Becker or Ederson make the top three.
1. Luke Shaw - £120,000-per-week
2. Sead Kolasinac - £100,000-per-week
3. Marcos Alonso - £100,000-per-week
When you think of the Premier League's best left-backs, you think of Andy Robertson or Lucas Digne.
You certainly don't think of Shaw, who earns the most out of any player in his position.
Kolasinac and Alonso make up the top three. Both players are also not guaranteed starters for their clubs.
1. Ashley Young - £120,000-per-week
2. Hector Bellerin - £110,000-per-week
3. Kyle Walker - £110,000-per-week
Young has been a great servant to United, but it's clear he doesn't deserve to earn the money he is.
He is on the verge of moving to Inter, though, so he won't be the league's highest paid right-back for much longer.
Earning marginally less than the Englishman are Arsenal's Bellerin and Manchester City's Walker.
It seems only a matter of time before Trent Alexander-Arnold hits top spot.
1. Virgil Van Dijk - £165,000-per-week
2. Harry Maguire - £162,775-per-week
3. David Luiz - £125,673-per-week
Maguire may be the most expensive centre-back in the world, but he earns marginally less than Liverpool's Van Dijk.
The fact Van Dijk earns the most in his respective position is completely deserved. He's by far the best defender in the world and is worth every penny.
Arsenal paid Luiz a lot of money to convince him to ditch Chelsea for them in the summer.
His performances certainly haven't warranted him earning that much money.
1. Kevin De Bruyne - £320,833-per-week
2. Paul Pogba - £290,000-per-week
3. Tanguy Ndombele - £200,000-per-week
De Bruyne earns an astonishing amount of money but you have to say he's been worth it.
In 22 Premier League games, he's scored seven times and recorded a remarkable 16 assists. That's ridiculous numbers.
Pogba and Spurs' summer signing Ncdombele make up the top three.
1. Mesut Ozil - £268,750-per-week
2. David Silva - £160,000-per-week
3. Juan Mata - £160,000-per-week
Ozil earns almost £100,000-per-week more than David Silva, which seems unjust when you look at the two players' output in the past few years.
The German midfielder is getting more chances under Mikel Arteta though and could relish Arsenal's new attacking style of football.
Mata earns the same amount as Silva which is laughable.
1. Marcus Rashford - £200,000-per-week
2. Heung-min Son - £140,000-per-week
3. Wilfried Zaha - £130,000-per-week
While Rashford's natural position is at striker, he has played the majority of games this season at left-wing.
He's been well worth his £200,000-per-week wage this season having scored 19 goals in 30 games.
Rashford has been a bright spot in what has been a poor season from Man United so far.
Zaha is one of only two players from outside the 'big six' to make the list.
Surprisingly, Sadio Mane is not among the top three highest earners.
1. Raheem Sterling - £300,000-per-week
2. Mohamed Salah - £200,000-per-week
3. Bernardo Silva - £150,000-per-week
Sterling was rewarded with a new contract in 2018 after a brilliant rise under Pep Guardiola.
Reports have emerged recently stating he could be in line to become the highest earning Premier League player.
He earns £100,000-per-week more then Salah, with Man City teammate Silva making up the top three.
1. Anthony Martial - £250,000-per-week
2. Sergio Aguero - £230,135-per-week
3. Harry Kane - £200,000-per-week
Martial has played on the wing for much of his United career but Ole Gunnar Solskjaer has given him his chance up front.
And the Frenchman has been in great form, netting 11 goals in 22 games.
It's fair to say he doesn't deserve to earn as much as Aguero, though.
The Argentinian has been one of the best strikers in Premier League history and is still playing at an extremely high level.
Out of the 27 players listed above, only two Liverpool players are among the highest paid players in their position.
That's incredible given they are steamrolling the Premier League this campaign.
In contrast, a United player earns the most money in six of the nine positions.
With them sitting in 5th in the Premier League and a whopping 27 points behind Liverpool, it's fair to say they aren't getting value for money.News Now - Sport News