Agent Giovanni Branchini has claimed that Manchester United failed in their bid to sign Juventus attacker Douglas Costa during the summer transfer window.

Costa has struggled to hold down a regular starting role during his two years in Turin, with five goals coming from 27 starts and 23 substitute outings in Serie A.

However, despite United allegedly showing an interest in the Brazilian before the start of the season, Branchini says that the Serie A champions had no intention of selling the 28-year-old.

Branchini told the Daily Mail: "The interest of Manchester United was strong, a club that has always been interested in the Brazilian. It was not the only club but in England it was certainly the most active team on the trail of Douglas Costa.

"Douglas has had countless health problems. Last season he was very often injured. He is wanting to recover with great professionalism after standing still. Juventus never intended to sell him despite the big pressure from United. Douglas is a 'cool' professional in the best sense of the word. He is able to adapt to everything.

"Premier League is a beautiful championship but for now United have failed in all their attempts to convince Juventus to sell him. The player remained in Turin and is a champion."

Costa still has just under three years remaining on his contract.