Alexis Sanchez has officially left Manchester United, bringing an end to his horror 18-month spell at the club. 

The Chile international arrived in January 2018 as a free transfer from Arsenal, but cost more in wages than they would have spent on many transfer fees.

United paid him a total of £59.3 million in wages and he scored just three Premier League goals.

That means the club were paying Sanchez £19.8 million each time he put the ball in the net. In fact, he earned £28,000 every time he touched the ball.

Absolutely ridiculous.

Now he's moved to Inter Milan on a permanent deal, here at GIVEMESPORT, we thought it would be interesting to create a starting XI of the most expensive Premier League flops.

So let's get into it. 

Sanchez isn't the PL's only flop

GK: Kepa Arrizabalaga | Chelsea | £71.6m

After selling Thibaut Courtois, Chelsea needed a new goalkeeper and decided to activate Kepa's release clause, making him the world's most expensive shot-stopper.

But 24 months later, Frank Lampard is desperately trying to offload him after two disappointing seasons at Stamford Bridge.  

Not only does he fail to inspire confidence in the defence, but Kepa is also Chelsea's second-highest earner on £150,000-per-week. 

Kepa makes the unwanted XI

LB: Benjamin Mendy | Man City | £52m

Mendy arrived at Man City for £52m back in 2017 but has played just 53 times for the club in all competitions. 

He's missed a ridiculous 85 matches through injury and even when he's match fit, the Frenchman has failed to hold down a spot in Pep Guardiola's side. 

Mendy has been poor for Man City

CB: Davinson Sanchez | Tottenham | £42m

Sanchez was Tottenham's club-record signing when he arrived in 2017, but he's really not done much of note in north London.

The Colombian was sometimes benched in favour of a Jan Vertonghen/Toby Alderweireld partnership and has failed to live up to his price-tag. 

Sanchez has struggled for Spurs

CB: Eliaquim Mangala | Man City | £43.5m

Man City paid £43.5m to sign Mangala from Porto in 2014, then paid him a further £12.5m in wages. He played just 57 Premier League fixtures for the club.

That means effectively, City paid him £1m per league appearance before shipping him off on-loan to Valencia and Everton. Madness.

Mangala was wasted at Man City

RB: Serge Aurier | Tottenham | £23m 

Okay, this one might be a little harsh. £23m isn't too much compared to other names in this team and Aurier hasn't massively flopped at Spurs.

But like teammate Sanchez, he's not done much to justify a hefty price-tag. He's made just 58 Premier League appearances in three seasons and has suffered a number of injuries too. 

Aurier completes the back line

LW: Alexis Sanchez | Man United | Free transfer (ridiculous wages)

As we've already mentioned, Sanchez is the most expensive free signing the Premier League has ever seen. 

£59.3 million in wages. He cost £19.8m per league goal and £28,000 per each touch in a Man United shirt. Enough said. 

Sanchez features in the team, obviously

CM: Tiemoue Bakayoko | Chelsea | £40m

Hands up if you forgot Bakayoko was still a Chelsea player? Well, he is. Easily the club's worst signing of recent years - and there's been many - Bakayoko had to take a place in this team.

He's played just 29 times in three years for Chelsea and has absolutely no way back into Lampard's plans after time on loan with AC Milan and Monaco.

We have no idea where he'll be next season, but it certainly won't be Stamford Bridge.

Bakayoko won't be in Lampard's plans

CM: Danny Drinkwater | Chelsea | £34m

Talking of players that will never play at Stamford Bridge for Chelsea again, we give you Drinkwater. 

He followed N'Golo Kante over from Leicester but boy, have their careers gone down different paths. 

Drinkwater never established himself in west London and has since played on loan for Burnley and Aston Villa - where he's caused serious controversy off the field. 

Drinkwater is a Chelsea outcast

RW: Angel Di Maria | Man United | £59.7m

Di Maria arrived at Old Trafford in 2014, hoping to usher in a new era post-Fergie. But that didn't happen. He was on a wage of £280,000-per-week and paid back precisely none of that. 

The winger struggled under Louis van Gaal and lasted just 12 months before jumping ship to PSG. There, he's fared far better, scoring 81 goals and providing 87 assists for the club.  

Di Maria flopped at Man Utd

ST: Fernando Torres | Chelsea | £50m

Torres was the original flop, really. He arrived at Stamford Bridge for £50m but never recaptured the form that saw him tear the Premier League apart with Liverpool.

He scored just 20 league goals in 110 games and on top of his massive transfer fee, cost the Blues £150,000-per-week in wages.

Torres was poor at Chelsea

ST: Andy Carroll | Liverpool | £35m

The term 'panic buy' springs to mind here. To replace Torres, Liverpool turned to Newcastle's Carroll. 

He didn't even play for two months following his move due to injury and when he finally got on the pitch, the striker was disappointing. 

Carroll scored just six goals in 42 Premier League games for the Reds and has since returned to Newcastle via West Ham. 

Carroll only scored six PL goals for Liverpool

Now, that's a team of flops if we've ever seen one. As you can see, Sanchez wasn't the first and he certainly won't be the last. 

But at £28,000 a touch, he may well be the worst of the bunch there.