Sao Paulo vice-president Joao Paulo de Jesus Lopes says he remains hopeful an agreement with Manchester United can still be reached over Brazil starlet Lucas Moura.
Lucas' agent all but ruled out a summer switch to Old Trafford on Tuesday after United's €35 million bid was rejected by the Brazilian club. However, Sao Paulo now claim they are open to negotiations with United before the transfer window closes.
"I don't rule out the possibility that in the future we open negotiations with Manchester United as we received them with great courtesy," Lopes told Radio Estadao ESPN.
"And there is the possibility they come back with another offer. Their approach was serious. Other teams have also expressed interest for Lucas, but only through the press from their countries."
Sao Paulo's economic rights ownership of Lucas is set to drop by 10% on August 1, which would see the club risk losing out on around €4 million should they fail to agree to terms in the coming days.
Meanwhile, Lucas has instructed his representative to continue talks with United while there is still a possibility that a deal can take place.
"My boss is the player. I always talk to him," agent Wagner Ribeiro told Radio Globo. ''The person who determines what I do, and my guidelines, is the player. If he says he does not want to leave Sao Paulo, I wouldn't even accept an offer.
"He told me to go ahead when I spoke about the interest of Manchester [United]. It's a great proposal. If it was something he couldn't refuse, he would go. But he is also happy in Sao Paulo. [But] if he stays at Sao Paulo, life goes on."