Roberto Martinez: 'Clear that Romelu Lukaku must leave Manchester United'

However, he failed to find the back of the net in his last eight appearances of the season and was not an automatic starter under Ole Gunnar Solskjaer.

Now Lukaku's international boss, who was also his manager at Goodison Park, feels everyone may benefit if the player secures a summer transfer.

"It is clear that he has to leave Manchester United," Martinez told Belgian newspaper Het Laatste Nieuws.

"It would be a good thing for both parties. It is now important that Romelu finds the right club."

Any potential departure for Lukaku could form part of an overhaul of Solskjaer's squad.

The Red Devils finished the season poorly and ended the Premier League campaign in sixth place.

Paul Pogba's future is also in doubt after the France midfielder suggested he is considering "a new challenge".

United's recruitment has so far been limited to the arrival of winger Daniel James from Swansea as a host of other big-names continue to be linked with the club.

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