Manchester United have turned down an offer from Napoli for Alejandro Garnacho.

Garnacho, 20, is wanted by the Italian outfit, who Antonio Conte coaches. They are in the market for a forward as Khvicha Kvaratskhelia is set to join Paris Saint-Germain.

Thus, they bid around £40million for Argentina international, but that does not meet United's valuation. Sources in Italy suggest they value the player too highly, with Napoli unlikely to meet that price, but agency sources believe a deal could still happen - even during the January window.

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Garnacho was deemed "not for sale" during the summer. However, the club are now "open" to selling an Academy graduate. But should the player they cash-in on be Garnacho? Our writers share their thoughts below;

Kieran King

For me, if United receive an offer of more than £60million, then they should cash-in on Garnacho. There's no doubt that he's a player that has a massive amount of potential and could go on to have a stellar career at the top, but it's clear that he doesn't fit into Ruben Amorim's current system.

Garnacho is better when he's out wide and has the chance to go beat his full-back one-vs-one. He isn't suited to a more central role and closer to the striker - and that was evident in their 3-1 win over Southampton on Thursday. In comparison, Amad Diallo looked a lot more assured and comfortable on his side.

With this in mind, I would sell Garnacho for the right price. I think £40m is not enough for somebody who with his ability and age, but if United were to receive an offer of £60million or more, I would take it. I can't see his valuation going anywhere above that mark, even if he was to go on and impress at his next club.

Tom Doyle

Last summer, it would have seemed unthinkable that United would consider selling Garnacho, but things change quickly in football. The talented Argentine looks an ill fit in either the wing-back or No.10 roles available, and there are concerns over his attitude and work-rate; non-negotiables for Amorim.

In years gone by, United could wait on a player like Garnacho to come good; now they need to sell to buy amid a difficult PSR position, and as an Academy graduate he represents pure profit.

Talents like him do not come around often, but the question is not whether Garnacho is talented; it is about how much Amorim values him versus how badly United need cold, hard cash - and the equation feels 50/50 right now.

Ideally United would sell Marcus Rashford instead of Garnacho, but his wages make any transfer difficult. Napoli want Garnacho but won't be able to lowball United after selling Kvaratskhelia to PSG for £60million, so the Reds are in a decent negotiating position - for once!

I wouldn't sell Garnacho for under £50million, but I'd be tempted to accept anything above that figure providing there's a generous sell-on clause - if he shines in Naples or elsewhere then Real Madrid or Barcelona will inevitably come calling, and a sell-on fee could easily be worth seven figures.

If United can move Garnacho on and make clever signings at left wing-back and up front, that would represent good business.

Isaac Seelochan

Tough transfer decisions will need to be made this summer when it comes to player sales at United. Garnacho is still developing, and that will make the Reds nervous about selling him.

The latest bid from Napoli is not worth United's time - and they were correct in rejecting it. But if a more suitable proposal is made by them or another team in Europe, United would be daft not to consider it.

Garnacho is more dispensable than Kobbie Mainoo, for example, while his inconsistencies make him frustrating to watch, at times. In an ideal world, the Reds should be patient with the Argentine but, with their PSR position, they may have to make the tough call and sell.

Kieran Horn

Just from his wasteful display against Southampton on Thursday evening, I'd sell Garnacho at the first opportunity given the funds United could receive. Maybe that's too harsh to say of a 20-year-old that has scored 23 goals since breaking into the senior team, with eight of those coming this season.

Amorim clearly favours other options as part of that attacking trident but, given Amad was required at wing-back, Garnacho was given the nod. As the game elapsed, the Ivorian showed Garnacho exactly how to finish his chances with a 12-minute hat-trick when the pressure was really on.

I often found myself frustrated by Garnacho's decision-making in the final third and - for me - question marks still remain over his attitude. While it makes sense to hold out for more money from Napoli - given their recent sale of Kvaratskhelia - if there is a £50million offer on the table, absolutely take it.

Garnacho has scored just once since the arrival of Amorim and there are much better options out there to fill that second No.10 role alongside Bruno Fernandes. Take the money Napoli are offering and go straight to Wolves with a huge offer, either now or in the summer, for Matheus Cunha they can't refuse.

Liam Wood

Nobody can deny the talent Garnacho possesses, but plain and simple he does not quite fit into the Amorim plan. You only have to look at how Amad has taken to the changes to realise that - he has two positions to call his own in a 3-4-3 and Garnacho does not have one.

Ordinarily, he should be given time to adjust and be nurtured further, but United need to start somewhere if they are to re-shape the squad for Amorim and getting in £60million (or so) for Garnacho would be worth no end more due to pure profit and PSR stipulates. Cashing-in is the right option.

However, they can be clever about this. Waiting for the right amount and adding in favourable clauses could well benefit United further down the line. It might be that he goes on to realise his full potential elsewhere, and United would almost-certainly want first refusal if that was the case.

Garnacho, ultimately, offers United a golden ticket for much-needed clout in the transfer market.

Jack Flintham

United have been guilty in the recent past of holding on to players for too long and their value becoming almost worthless by the end. You could argue that Rashford fits into that billing considering the slumps he has had.

It will always be difficult, especially with Academy graduates, to determine whether or not now is the right time to sell. There is an emotional, sentimentality into the idea of keeping these players - and giving them the best possible shot of spending their entire careers at the club.

However with Garnacho, is he the right player for Amorim's formation? Probably not. Could he learn to play the system? Possibly, but hasn't trying to put square pegs in round holes been the reason for United's recent failings?

In my eyes, a bid of £60million-plus is more than a fair price for Garnacho and it would allow Amorim some much-needed funds to reinvest in the squad. Sometimes you need to know when to let go and we may have just found that moment for United.

Carrington Walker

Much has been made about INEOS' budget cuts at United, with some taking aim at players on high wages who are unable to break into the first team. Unfortunately, you'd be hard-pressed to try and shift most of the deadwood at United with their premium wages. So, players with high stock, like Garnacho, might be the best way for INEOS to recoup losses and rebuild the club from its foundations.

The Argentine has been one of few success stories at Old Trafford in recent years yet his talents don't seem to align with Ruben Amorim's philosophy. The head coach has stated Garnacho needs to improve on his play inside the pocket if he's to be a mainstay in the starting 11. The 20-year-old's talents are more explosive than technical - bold and fast moments rather than subtle and nuanced which often suit the role of a No.10.

If United were to receive an offer in the region of £60million-plus for Garnacho's services then there are plenty of reasons to accept - not least Amad's promising form. But, if Amorim were to revert to a style of play which involved wingers, both Amad and Garnacho on either wing would put them in good stead for future campaigns.