Everton and Chelsea have opened transfer negotiations over Belgian striker Romelu Lukaku, according to The Daily Mail.
The forward - who was on loan at the Toffees last season - is still just 21-years-old, and has been linked with a number of clubs in recent time.
The report suggests that Spanish outfit Atletico Madrid have already been offered the chance to bring the striker to La Liga this summer.
However, it appears that Merseyside outfit Everton are desperate to bring him back to Goodison Park ahead of the 2014/15 campaign.
Lukaku scored 15 Premier League goals for Roberto Martinez's side last season, and will be hoping to take his form into the up coming tournament in Brazil.
The Blues have already agreed a deal to sell flamboyant Brazilian star David Luiz to French moneybags Paris Saint-German. Reports have suggested that the Blues have accepted a £40 million deal with the Ligue 1 outfit.
Chelsea, meanwhile, look set to land Spanish international Diego Costa from Atletico in a deal worth £32 million, after the forward reportedly completed a medical at the club yesterday.
It remains to be seen as to whether Lukaku will star alongside the Brazilian born hitman under Mourinho next season. Blues fans will certainly be excited ahead of the next campaign as 'The Special One' targets silverware.