Chelsea have revived their interest in Atletico Madrid striker Sergio Aguero.
The Mail on Sunday says any deal to bring Diego Maradona's son-in-law from Atletico Madrid would cost Chelsea owner Roman Abramovich at least £20million.
Aguero has started only one game for Argentina in the World Cup so far but is highly rated, having scored eight goals from 24 international appearances.
Chelsea relied on Didier Drogba and Nicolas Anelka to help them to their first domestic Double last season but both players are in their 30s and fast approaching the veteran stage of their careers.
Chelsea boss Carlo Ancelotti has admitted that he wants a more youthful flavour to his team next season and Aguero fits the bill.
