The transfer rumour machine that surrounds Manchester United can be a frustrating affair. More often than not gossip claiming the imminent arrival at Old Trafford of big names fails to materialised into anything concrete. Since Sir Alex Ferguson’s retirement the fourth estate has confidently predicted the acquisition of Thiago Alcântara, Cesc Fàbregas, Sergio Ramos, Gareth Bale, Cristiano Ronaldo, Thomas Müller and, everyone’s favourite, Nicolás Gaitán. None have ended up gracing the Old Trafford turf. Is Antione Griezmann the latest in a long line, or another record-breaking buy in the making?