Sergio Aguero wants exit from Atletico Madrid

Sergio Aguero
Aguero has scored over 100 goals for Atletico Madrid

Atletico Madrid forward Sergio Aguero has asked the Spanish club to release him from his contract.

The 22-year-old Argentine international extended his deal to 2014 in January but his buy-out clause was reduced from £52m to £40m.

"After five intense years a stage in my personal development has ended and I have to move on to a new one," said Aguero on his website.

Chelsea, Liverpool, Manchester City and Tottenham have been linked to Aguero.

"I said long ago that when I wanted to go, I would say so publicly," added the Atletico striker. "And the time has come.

"So I keep to my word and here I am. I find it hard to leave Atletico. It hurts and saddens me."

Aguero has scored over 100 goals for Atletico since joining from Independiente as a teenager in 2006.