Atletico Madrid coach Javier Aguirre believes this season can be Sergio Aguero's "breakout year".

"Lionel Messi has been six years in Spain and Aguero arrived straight into the first team and is fulfilling expectations," said Aguirre. "He is in a process of permanent improvement and I believe that this can be his breakout year."

The Mexican added: "He works very well without ball, he is always very kind to the coaches and takes advice. Outside the field he has a wonderful conduct and contentment, he seems very comfortable with himself."