Chelsea Football Club are set to up their interest in Sergio Aguero.

The Argentine striker is rated as one of the best talents in European football, and Atletico Madrid have slapped a £51million release fee clause in his existing contract.

Reports in the Daily Mail claim the Blues are hoping to tie up a deal for the player ahead of the new season, and will offer the Spanish side £38million plus Deco.

The Portugal international made a fine start to life in the Premier League last season, but he faded badly and may welcome the opportunity to return to La Liga where he starred for Barcelona.