Workaholic Chelsea striker Romelu Lukaku has been training with his former club Anderlecht.

The 21-year-old is being tracked by Everton, Juventus and Wolfsburg this summer and turned up at his old stomping ground today to build up his fitness.

Lukaku is not due to report back for pre-season training with the Blues until next Wednesday after being given an extended break due to his involvement with Belgium in the World Cup.

Belgium exited the tournament at the quarter-finals stage in Brazil.

Everton are thought to be preparing a bid to sign the powerhouse forward on a permanent deal in the coming weeks following a successful loan spell at Goodison Park last year.

Chelsea’s pursuit of Didier Drogba, who is expected to make a stunning return to Stamford Bridge, only puts further question marks over Lukaku's future.

Lukaku arrived in SW6 in the summer of 2011 from Anderlecht for a fee of around £18million.

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