MR: Bebe
A bizarre signing brought in despite Sir Alex Ferguson never seeing him play live, Bebe proved to be extremely poor for the Reds, unsurprisingly.
ML: Angel Di Maria
A big-money flop, Angel Di Maria was a huge disappointment, lasting just one season at United despite costing a club-record £59.7m from Real Madrid.
FC: Radamel Falcao
One of the worst strikers to play for United, Radamel Falcao scored only four goals on loan at the club last season and looked hopeless in almost every aspect.
FC: Marouane Chamakh
Another striker who just couldn’t score, Marouane Chamakh must be one of the only free transfers to somehow look like a waste of money.