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Robin Van Persie is probably one of the top five strikers in the world. But he's not just a striker.
Wayne Rooney would walk into any team in the world. And he's not just a striker.
Shinji Kagawa will probably score 15 and make 15 goals this season and he's not even a striker.
OK so Neymar has scored 116 goals in 194 matches for Santos, but they wouldn't win the EPL.
Yes, its true that Sir Alex bid almost £30 million for Lucas Moura before conceding to Paris St Germain and Moura wasn't even a first choice for Brazil in the Olympics.
But apart from being heavier and stronger, Lucas is an attacking midfield player.
If United could afford the luxury of a player who can waltz through a defence, score with either foot and not run deep to win the ball or in any other way contribute to the other half of the game, i.e. defending, they have at least two such players on their books.
Rafael and Fabio Da Silva. Yes, they play at full back, but either could play on the wing. More important, they are natural born goalscorers and they can tackle.
Look at the goals each has scored at every level since they came to United.
No, I'm not advocating that either should play number 10, but United have found that they can't afford to have any luxury players in the Premier League, or indeed the Champions League.
As Chelsea showed last season and United previously, you need a mix of talent, technical skill, passing ability, pace, teamwork, defence in depth and organisation for an English team to win the Champions League.
Unless, of course you are Barcelona and that seems the most likely destination for Neymar.
Neymar recently signed a contract extension at Santos that keeps him until 2014.
That isn't very long these days, so no doubt the jungle drums will start beating again next summer, or even in January.
But the idea that United could have signed Neymar for £38 million is preposterous when they paid £24 million for Van Persie and Spanish paper AS reported City offered £160 million for Ronaldo (via Metro).
Despite what I've said here, Neymar is a very special player who can only get better. But surely he is more suited to a team like Barcelona, Real Madrid or the side that PSG can become?
In the meantime, it is worth speculating on how good a player Ryan Giggs might have been if he had played for Barcelona for the last 20 years in the role Lionel Messi plays now. Maybe the best ever?
If United have one last signing in them to be the very best they can be, surely it is more likely to be a Yaya Toure than a Neymar: someone who can keep things rock solid in midfield and ghost through defences as well, but with sheer physical power.
When you think about it, even Ronaldo would be a luxury in the present set-up because of his reluctance to tackle or track back.
Unless of course he was played as an out and out striker, which is where he should be.
Maybe after Van Persie?