The 20 biggest transfer flops in the club's history were ranked by FourFourTwo magazine, including Angel di Maria and Owen Hargreaves. We start our countdown at No7 with Harry Maguire, who has struggled to show his England form since his £75m move from Leicester.

At No6 is Alexis Sanchez, who lasted just a year-and-a-half at Old Trafford, scoring five goals in 45 games after moving from Arsenal in 2018 for £30m in a deal which saw Henrikh Mkhitaryan go the other way.

Donny van de Beek is at No5 as he continues his underwhelming Utd career after signing from Ajax for £34m in 2020. Has been marred by injuries and a lack of minutes, with a loan move to Everton failing to turn his fortunes around.

At No4 is the man Fergie called his worst buy  - winger Ralph Milne. He was signed from Bristol City in 1988 but made just 29 appearances. Describing the signing, Ferguson said in 2009: 'I only paid £170,000 but I still get condemned for it."

Cult hero Eric Djemba-Djemba begins the top three, having been signed as a potential successor to Roy Keane in 2003. His £4m move from Nantes failed to prove fruitful, though, as he made just 13 league starts before leaving for Aston Villa 18 months later.

Paul Pogba is at No2, after his £89m move from Juventus in 2016. Battled criticism from fans and pundits across the next six years and went back to Juve on a free in 2022, having registered 80 goal contributions in 226 appearances. A massive disappointment.

Taking top spot, if you can call it that, is Portuguese winger Bebe. Fergie even admitted he'd never seen him play following his £7.5m move from Vitoria Guimaraes in 2010. Scored twice in seven appearances before he was sold to Benfica four years later following a string of loans.