Manchester United have received a boost in their alleged pursuit of Roberto Firmino following reports that Hoffenheim are willing to sell the attacking midfielder this summer. The Bundesliga outfit are understood to have already lined up a replacement for the Brazil international, fuelling speculation he's set to leave the Rhein-Neckar-Arena. Louis van Gaal is keen to add more creativity to his Red Devils squad next season and is willing to pay out £18.6m for the 23-year-old's signature. Firmino scored a brilliant chipped goal against Borussia Dortmund in the German Cup on Tuesday night but was unable to prevent Hoffenheim from crashing out at the quarter-finals after losing the match 3-2. However, the South American playmaker's performance will have been noted by Manchester United scouts as they prepare to make their move when the transfer window reopens.