The attacking-midfielder role is becoming one of the most important parts of European football teams.
They are players who can link the play between midfielders and forwards and create goal-scoring chances with laser passes or silky dribbles.
But who are the five best attacking-midfielders in the world?
Muller is rare kind of attacking-midfielder, he is not flashy, he will not be seen pulling off spectacular tricks and skills to beat a defender.
However, he is brilliant at the simple things and very efficient, he is also very versatile and can play anywhere across the midfield. He has excellent reading of the game and is ready to take the ball and then pass it off again, always simple but also very effective.
He is good at finding space and has an excellent work rate, closing down the opposition and getting himself in good positions on the attack.
Ozil is a superb playmaker, he has brilliant movement and a perfect touch, along with his brilliant through balls and passing ability.
Of course, at Madrid, Cristiano Ronaldo gets most of the headlines but without Ozil's brilliance between the oppositions lines, Madrid would not be anywhere near as effective.
He is one of the very best in the world and will be vital for Germany's talented team at the World Cup next year.
Without Mata, Chelsea would be so much less than what they are, his brilliant all-round playmaking is key to the Blues' free-flowing play.
Mata has everything an attacking midfielder should, he scores and creates many goals, beats players, makes great defence splitting passes and can also take set pieces. He is not recognised as much internationally purely because of the depth of Spain's midfielders but he is still world-class.
The third German on this list - the £32 million Bayern Munich paid for the 21-year-old proves how highly rated Gotze is. A brilliant naturally gifted footballer who can go on to huge things in football. He sits just behind the striker linking the play and making great through balls.
He has a great goalscoring record to go with any assists for Dortmund and the German national team. Now at Bayern he will continue to create momentum and free flowing play in attacks alongside the other outstanding Bayern players.
I think most people will agree that Andres Iniesta is the best player on this list - he is arguably the 'best of the rest' when you take out Ronaldo and Messi.
When the Spaniard has the ball at his feet he seems like a magician, with beautiful close control and the ability to manipulate the ball and make it do almost anything.
He splits defences time and time again with laser accurate through balls and outstanding dribbling ability with quick burst of pace.
Whenever Iniesta plays he sparkles and lights up games with his brilliance, no matter what team Iniesta plays against he stands out.
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