Newcastle United may face a difficult summer ahead. While they still have an awful lot to play for during what remains of this season, Newcastle might have to make difficult decisions. Indeed, Eddie Howe has already admitted this will likely be a “difficult summer” for the club under the continued obstacle of FFP limitations. During the January transfer window, it was even said that the club may have to sell one of their prized assets if they were to have spent big. Sadly, much of the talk about leaving this summer has been surrounding Bruno Guimaraes. READ MORE: Who is Bruno Guimaraes? Meet N…