Chelsea manager Jose Mourinho has claimed he sold Romelu Lukaku to Everton because the Belgian striker did not have the stomach to fight for a place at Stamford Bridge.

Lukaku joined Everton in a club-record $47.4 million transfer on Wed-nesday, having scored 16 goals in 33 appearances while on loan at Goodison Park last season.

The 21-year-old faced competition from new signing Diego Costa and returning club great Didier Drogba at Chelsea and Mourinho felt he did not possess the drive to win a first-team place.