Manchester United are serious about their pursuit of Gremio attacking midfielder Douglas Costa.

The News of the Word says United are deadly serious about capturing 18-year-old attacking midfielder Costa, who is also on the hitlist of Barcelona and Real Madrid.

And after signing a new contract with his club Gremio, Costa's fee would be around £20million.

United are assembling a strong Brazilian contingent and Costa would be joining compatriots Anderson, Rodrigo Possebon and the Da Silva twins, Rafael and Fabio.