ESPN understands Manchester United are to set clinch the £30 million signing of Brazil's Lucas Moura.
Moura, 19, has been strongly linked with a move to United and their rivals Manchester City, while Inter Milan have recently been suggested as an interested party.
This week, Sao Paulo moved to play down speculation that the winger was poised to join City, and also rejected claims that an offer had been received from Inter.
United are now the favourites to sign Moura, who, it is understood, will receive 30% of the transfer fee.
A source told ESPN: "Sir Alex is keen to push through the signing of the young winger and United will have to pay £30 million to get him."
Lucas is currently representing Brazil at the 2012 Olympics, with the forward coming on in the second half of his side's 3-2 quarter-final win over Honduras.
United also remain in the hunt for Arsenal's Robin van Persie, although it remains to be seen if the Red Devils will meet the Gunners' asking price of offers in excess of £20 million.