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There's only one story dominating the front pages of Saturday's sports papers in Spain. Where will the La Liga title end up? Today could go a long way to deciding the destination.

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Andy West
Spanish football writer

It could be argued that after so many years of lagging behind Real Madrid and Barcelona in financial terms, Diego Simeone would relish the opportunity to join a club such as Chelsea where signing world-class talent became a realistic option.

But Atletico are rapidly growing off the pitch, boosted by additional revenue following their recent part-acquisition by the massive Chinese property investment company Wanda Group. And they will take another big step forward next year by moving into a new 70,000-capacity stadium.

Read more of Andy on Simeone on the BBC Sport website

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Atletico boss Diego Simeone is only 45 but he has already delivered one La Liga title, one Europa League triumph, the Copa del Rey and the Uefa Super Cup. So why has no Premier League club snapped him up? Which club would suit the former Argentina midfielder best and why?

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There was a doubt over Neymar ahead of this but the Brazil forward starts along with Luis Suarez and Lionel Messi. 

Turkey midfielder Arda Turan, a £24m signing from Atletico last July, is on the bench.

Barcelona XI: Bravo, Alves, Pique, Mascherano, Alba, Busquets, Rakitic, Iniesta, Messi, Suarez, Neymar.

Atletico have leading scorer Antoine Griezmann up front on his own, with Diego Simeone set to start with a 4-1-4-1 formation.

Atletico Madrid XI: Oblak, Juanfran, Godín, Gimenez, Luis, Gabi, Augusto, Koke, Saul, Carrasco, Griezmann.

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Games don't get much bigger than this. With Real Madrid trailing behind, it's left to Atletico to stop the juggernaut that isBarcelona from hurtling towards another title.

Both are locked on 48 points but will the wheels come off Luis Enrique's season? There is no sign of it yet but Diego Simeone's Atletico presents a huge test.

Should the capital visitors win at the Nou Camp for the first time in 10 years then they will fancy their chances of being crowned champions of Spain for the second time in three seasons.

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We're not even out of January, the halfway point of the season was just a few weeks ago. Usually, pancakes and Easter eggs have been scoffed before titles are handed out.

Not in Spain. 

Should Barcelona defeat Atletico Madrid today in La Liga's first-versus-second showdown, Lionel Messi & Co will go three points clear at the top with one game in hand.

And that, according to some observers, will make Barca uncatchable as they seek to become La Liga champions for the 24th time.