Newcastle United have endured midfield problems this season. Even before Sandro Tonali’s ban from football, much was made about Newcastle’s struggles in the engine room, with there some doubt as to whether or not the Italian and Bruno Guimaraes could operate together successfully. With Guimaraes previously making it clear he’d rather play further forward amid an acceptance the deeper role is not his optimum position, things have been messy at times. Well, the Brazilian was deployed as more of a No.8 against Nottingham Forest on Saturday and duly scored two goals. In order to accommodate Guimar…