Tenacity, determination, passion and eagerness: those are the best attributes of Brazil defender David Luiz. However, in a centre-back position, it is those very qualities that hold-back the hosts.
The 27-year-old has got to be the neutral's choice of favourite player. Just look at him; wild hair, wild personality and a wild style. Really, at heart, he's just a maned-lion roaming the Serengeti desert looking for his next prey.
Unfortunately, it cannot be that way at this World Cup though.
So far we have seen the hosts, expected to romp the tournament, slightly off-the-boil. There needn't be any fear of Luiz Felipe Scolari's men making the knockout phase, but what happens from that point must concern the favourites.
Croatia scratched the surface of Brazil's defensive shortcomings with a Hull City striker, it could have been a different story if Bayern Munich's highly rated star Mario Mandzukic had steered clear of suspension.
Similarly, Mexico, for all their energy and hustle, didn't quite have enough to get over the line.
Quite frankly, at this rate, anybody could line-up against an embarrassingly volatile Cameroon side where only a point is needed.
Brazil could then progress to take-on two sides with an attack-minded philosophy. Both Chile and Holland have beautifully and meticulously deconstructed the previously-irrepressible World and European champions Spain.
When you look at it on paper, Brazil have the perfect combination at the back to repel any sort of challenger on home territory.
What's better than the captain Thiago Silva, worthy of a £37 million move to PSG, and David Luiz, who has just become the world's most expensive defender in a £50 million deal to the same big-spending French outfit? £87 million of defenders right there.
Both have earned their moves to the Parisian outfit for their willingness to get advanced and dictate play.
They'll be a partnership that will dominate in France. With the greatest respect, Guingamp and Evian, are unlikely to provide a constant, threatening approach. They can get forward to support teammates like Zlatan Ibrahimovic and Edinson Cavani without a big care. Only Monaco and Lyon may test that.
This World Cup is different though. The stars of club football are finally transferring their form to the best stage of all. Lionel Messi, Karim Benzema, Arjen Robben, Thomas Muller, Luis Suarez and Mario Balotelli have all hit the ground running.
Eventually the better players will come up against the hosts and the Luiz-Silva partnership will be tested.
Jose Mourinho is the self-proclaimed 'special one' and he noticed the need to keep defenders defending this season. Luiz couldn't get-in ahead of Gary Cahill or John Terry.
He did, though, play Luiz in defenive-midfield position in the Champions League, and despite having a comparatively under-strength side, they came almighty close to going all the way.
Now Luiz is a superb character, look at the way he belts out the national anthem as if he is about to lead an army to a bloodied and glorious final battle on the frontline.
However, his wackiness and unpredictability just wont work against the best players. It is both entertaining and risky when he emerges from the defence in Messi-esque run through the field.
Those gallivants down-field would be perfect for Brazil, but not from a centre-back. Alongside fellow Premier League imports Paulinho and Oscar in midfield there is the perfect balance.
Dante of Bayern Munich is more than capable to slot alongside Silva, those two provide a much-better repellent to attacks from quality stars.
Brazil are known for their attacking flair but are sometimes known for their defensive frailties. Luiz epitomizes that trail of thought, so put him in midfield and you there have the best of both worlds.
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