Top 5 most expensive flops in Manchester United history

#1 Alexis Sanchez - 2018 (£30m)

Sanchez has been offloaded to Inter Milan

Though the value of Alexis Sanchez' purchase from Arsenal was given as £30m, the Mancunians actually did not spend a dime, as Henrikh Mkhitaryan went in the other direction as already touched upon.

Judging by this alone, it makes no sense for the Chilean international to be on this list, but a breakdown of his remuneration package would highlight just how expensive Sanchez was to Manchester United.

In a bid to price him away from city rivals Manchester City, United offered Sanchez a bumper contract, making him the highest-paid player in Premier League history with baseline wages of £390,000 per week, as well as a £75,000 appearances fee.

Those are enormous numbers even by United's standards, but the outlay would have been justified if Sanchez was pulling his weight on the field.

However, that proved to not be the case, as the 30-year-old was nothing but a shadow of the menace who terrorized opposition defenses in the colors of Arsenal and scored just five goals in 45 appearances for Manchester United in all competitions.

His 18-month Old Trafford nightmare was ended when he completed a loan transfer to Inter Milan, but as a pointer to how low his stock has fallen, the Italians did not include an obligation to buy, while Manchester United would still be offsetting a considerable chunk of his tremendous salary.

Alexis Sanchez had arrived in a very publicized manner and was welcomed with open arms, but 18 months on from his piano playing unveiling, it is hard to imagine that there would be any United fan who was not glad to see the back of him.