United have reportedly failed to meet Sao Paulo's demands of around €45million.

Now the club face competition from French giants Paris St Germain.

"We have been probed by PSG about Lucas," Sao Paulo vice-president Joao Paulo de Jesus Lopes told Le 10 Sport.

Lopes also confirmed that there had been regular contact between the club and current PSG sporting director Leonardo.

"Leonardo has a very good relationship with Sao Paulo. But for now nothing is definite," he added.

Reports claim PSG's bid would see Moura stay in Brazil until January.

"The possibility exists but it is down to the player's interests. The policy of Sao Paulo is to follow the desires of the player. If the player wishes to leave, Sao Paulo will not create any obstacle. But we must receive a proposal that is appropriate," Lopes said.

"It's a financial issue. Paris Saint-Germain is a big club in European football and if the player's interests and also the club's are met, I do not see why it would not happen."