Chelsea have agreed to sign striker Diego Costa from Atletico Madrid, the Premier League club announced Tuesday.

The Spain international had long been linked with a move to the London side and completion of the deal appears to be imminent after the Blues said they had met the buy-out clause for the 25-year-old forward.

"Chelsea Football Club can confirm an agreement has been reached with Atletico Madrid for the transfer of Diego Costa, with Chelsea meeting the buy-out clause for the Spanish international," said a statement on the club's website.