Lewandowski's record against Real Madrid shows him and Barca are the perfect fit

However, the Polish goalscorer is already somewhat of a hero at the Nou Camp, even though he's yet to kick a ball for them.

Fans and pundits have been shocked by the deal going through, given Barcelona's ongoing financial struggles.

But Lewandowski's record against Barca's El Clasico rivals Real Madrid - who he could make his debut against in pre-season - show that the two parties are a perfect fit.

The 33-year-old has had a bit of a habit of haunting Los Blancos over the course of his career.

Lewandowski has netted six times against them in the Champions League.

Barca fell well short of taking the La Liga title last season, finishing 13 points behind their foes from Madrid. However, the belief will be that having Lewandowski in their ranks for next year bodes well for them.

And there's one particular night back in 2013 that explains why…

Four-shadowed

Lewandowski's excellent record against Real Madrid came to a head back in the 2012/13 season. Playing for Borussia Dortmund, the Poland international faced the La Liga giants in the Champions League semi-finals first leg.

The Spanish side reached the semis the year before and served as tough opposition for the German outfit.

But despite the expectation that Jose Mourinho's side would have the upper hand, this European tie marked the day Lewandowski broke a range of records against Real Madrid.

And to say he ran riot against them would be an understatement.

In front of a home crowd at Signal Iduna Park, Lewandowski scored four times against Real Madrid, with a single goal from Cristiano Ronaldo helping to ease the deficit.

But the damage had been done.

Lewandowski's four goal led to him becoming the first ever player to put three past Los Blancos in the Champions League.

And the new records didn't stop there.

Real Madrid's 4-1 defeat at the hands of the Polish star marked Mourinho's biggest ever Champions League loss.

For a manager that had won the La Liga title with his side the season before and previously won the Champions League twice, Lewandowski singlehandedly inflicting a record breaking defeat on The Special One was quite something.

And that defeat essentially ended Jose Mourinho's managerial stint there, with him leaving the club that summer and labelling that season 'the worst of his career'.

Barcelona will definitely be hoping he can cause the same damage against their El Clasico rivals next time out…