Chelsea coach Thomas Tuchel would like to replace Romelu Lukaku with Robert Lewandowski, but there are significant obstacles to completing both deals, sources told ESPN.

Lukaku is keen on rejoining Inter Milan and endured a disappointing first season back at Stamford Bridge — with eight goals in 26 Premier League games — after leaving the Serie A club for €115 million last summer.

Sources told ESPN that talks took place between Lukaku and the club in recent days, during which Chelsea signalled their willingness to allow the Belgian striker to leave the club. However, the Blues want to recoup the vast majority of the club-record fee they paid just a year earlier, while Inter are short on cash and would prefer a loan deal.