Porto will insist on any interested club paying the €45 million buyout clause for James Rodriguez.
A Bola says Porto must make a big cash sale this summer to balance the books, but would prefer to sell either Hulk or Joao Moutinho ahead of 20 year-old Rodriguez.
Manchester United have been linked with making a €30 million offer for the Colombian, while Liverpool are also interested.
Hulk is a top target for Chelsea, though no serious offer has been tabled.