Brazil-born attacker is set to join the Blues later this summer.
La Liga leaders Atletico Madrid want to take out-of-favour Chelsea front man Romelu Lukaku on a season-long loan deal next campaign as part of the negotiations that will see their own striker Diego Costa move to Stamford Bridge this summer, according to reports in the Daily Mirror.
Read great Chelsea stories in Indonesian Bahasa! Chelsea transfer berita.
The giant Belgium international has just ended a highly successful season out on loan at Everton, where Lukaku managed to find the back of the net on 15 occasions in his 33 Premier League outings for the Merseyside giants.
However, with the 21-year-old having since returned to his parent club in west London, Lukaku and the Blues must now decide where his future lies next season.
Chelsea, it is believed, are keen to offer the striker a contract extension on his current deal in the capital that runs until June 2016, although head coach Jose Mourinho is still said to be keen to offload Lukaku on loan again next campaign.
And now it is thought that Atleti are interested in taking the player on loan next season and hope to use the current negotiations that are taking place between the two clubs regarding the £33m sale of forward Costa to Chelsea this summer in order to also agree a deal for Lukaku.