Gremio are asking far too much for Douglas Costa to make the move to Manchester United, says his agent.

Gremio have slapped a £20 million price-tag on the 18 year-old.

"I don't believe that they will reach this figure," Cesar Bottega told Zero Hora.

"Right now, an offer might come in at a maximum of £6.7 million. But this would not be enough for [Gremio] president Duda Kroeff."