United boss Sir Alex Ferguson confirmed the club’s interest in signing the 19-year-old earlier this week.
United have had a £25.6million bid for the youngster rejected, with Sao Paulo reportedly holding out for £30million.
“The player is my boss, I always talk to him,” Moura’s agent Wagner Ribeiro told Radio Globo.
“He determines what I do, my objectives. If he says that he doesn’t want to leave Sao Paulo, I won’t even listen to the offer.
“He told me to keep negotiating when I talked about Manchester United’s interest.
“It’s a great offer. If it was an irrecusable one, he would leave, but he is happy at Sao Paulo too. If he stays there, life goes on.”
