Porto have confirmed to skysports.com that they will not take anything less than 20million euros for star defender Jose Bosingwa.
Manchester United have reportedly stepped up their interest in the versatile right-back, who has been very much in the gaze of Aston Villa and Liverpool.
Porto have now confirmed that they would not consider any offer less than 20million euros for the Portuguese international, who they signed from Boavista five years ago.
"The value of Bosingwa in a deal is at least 20 million euros and Porto will not even study any offer inferior to this," a Porto spokesman told skysports.com.
The Portuguese press is also linking Spanish giants Real Madrid and Barcelona with a move.
President Pinto da Costa insists a sale is not something they are looking at, but they would obviously consider a substantial offer.
"We do not want to sell," he told the Portuguese press.
"But if a good offer arrives then it is normal that we would look at the subject."
Bosingwa admits he would be more than tempted by a big offer.
"I would accept a sale from a big club with an attractive sporting project," he said.