As reported by The Daily Mail, Chelsea are intent on selling Diego Costa this summer, despite losing out on new Manchester United star Romelu Lukaku.

What's the story?

Man United announced on Saturday via Twitter that they had agreed a fee with Everton for Belgian international Lukaku, which is a major blow to Antonio Conte. The Daily Mail report the striker was the Italian's number one target this summer.

However that doesn't mean that Chelsea are any less keen to say goodbye to Costa, according to the paper. They say there's no healing the rift between the forward and the Blues boss, meaning that prospective buyers are in a strong negotiating position.

The report says that while Chelsea's valuation of the striker is £60m, clubs like Atletico Madrid know they can likely drive that price down as long as Conte remains in charge.

Britain Football Soccer - Chelsea v Southampton - Premier League - Stamford Bridge - 25/4/17 Chelsea manager Antonio Conte celebrates after the match with Diego Costa Action Images via Reuters / John Sibley Livepic EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications.  Please contact your account represen

What they need to replace

The situation leaves Chelsea in a difficult position, even if they sell Costa for the reported £60m, is that enough money in the modern market to truly replace what the Spanish international offered them last season?

With 22 goals and 7 assists last season, he was one of the most important performers in their English Premier League title-winning campaign. There's an argument to be made that without him they would not have one the trophy with Costa popping up with vital goals throughout the season.

Perhaps Chelsea have a belter of a signing lined up but they better be in their prime and ready to go or the Blues could find it tough to replicate last season's success next term.