Santos president Luis Alvaro Ribeiro has revealed that he has rejected a "comical" bid from Porto for playmaker Ganso.
Ganso, 22, is considered to be one of the best young talents in Brazil and Manchester United have also been credited with an interest.
Ribeiro had recently seemed to suggest that the club would be willing to listen to offers for the midfielder if he wished to pursue a new challenge, but the two clubs appear to be far apart in their valuation.
"We have no interest in opening talks with what was offered. Proposals like these are comical, not to say tragic," Ribeiro told Arena SporTV.
"I would say there was a typo, they forgot to put one zero in their bid. But I will respond to their offer on Monday, saying we have no interest and I will send a copy to the company which owns part of his economic rights."
Ganso has made 125 appearances for Santos, scoring 28 goals in the process.