Romelu Lukaku
Romelu Lukaku has scored 18 goals in 29 Premier League games for Everton thus far this campaignGetty

Manchester United target Romelu Lukaku's agent Mino Raiola has opened the door for a summer move from Everton after admitting that his client is ready to make the step up and play for one of the top clubs in Europe. The Belgian striker, who was on Chelsea's books, was sold to the Toffees by Jose Mourinho in 2014 after being deemed surplus to requirements.

The 22-year-old forward has grown from strength to strength during his time with Everton and this season he has notched up 18 goals in 29 appearances in the league thus far. The Toffees, however, are struggling despite his goals and are currently languishing in 12th place with a top 10 place looking unlikely due to their sketchy form during the course of the campaign.

Lukaku has been on the radar of a number of clubs due his form this campaign and is likely to be subject to interest from an array of clubs across Europe in the summer. Apart from the 20-times English champions, Real Madrid, Juventus, former club Chelsea, Bayern Munich and Atletico Madrid are said to be plotting a move. The striker's father has urged him to choose the Red Devils or the Bundesliga champions ahead of next season. Everton, however, are reluctant to sell their star forward and, according to the Mirror, are ready to reject bid even as high as £50m ($72m).

The striker is certain to want to play at a higher level and will be a guaranteed starter in most of the top European clubs. Raiola is confident that his client will get better in the future and believes he is ready to make the step up to a club in the Champions League.

"He'll keep getting stronger. Everything depends on his work and on luck. He's already ready to play in Europe's best teams," Raiola said, as quoted by The Sun.

"We've put a structure together that allows him to only think about football. This has allowed him to think exclusively about his personal objectives," the Belgium international's agent added.