Sao Paulo president Juvencio Juvenal concedes Lucas could be sold this summer.

Lucas' agent revealed yesterday that Manchester United and Chelsea were chasing the 20 year-old attacker.

And Juvenal admits: "I have to say that we want to keep Lucas up to the 2014 World Cup in Brazil. It would be a dream come true for us.

"I hope that Lucas is happy here and wants to do the same. But I do not feel like making promises, I cannot because we all know that several clubs want him and this also depends on him. "