The Red Devils have done some poor business in the transfer market under their American owners - but which players stand out as the worst?

Aston Villa has signed Netherlands forward Donyell Malen from Borussia Dortmund for a reported fee of 21 million pounds ($25.6 million).

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Jadon Sancho's Chelsea tenure could be about to take a downward turn with the Blues reportedly eyeing a move for Alejandro Garnacho.

BIRMINGHAM, England (AP) — Aston Villa signed Netherlands forward Donyell Malen ... but only off the bench because of the impact of Jadon Sancho, who was on loan at Dortmund at the time.

Manchester United fans will be upset that the trade is unlikely to free up finances for an incoming star this January transfer window.

Chelsea are reportedly exploring a surprise move for Manchester United winger Alejandro Garnacho, while also having interest in Borussia Dortmund's Jamie Gitten

The stunning transformation of Alexander Isak from shy teenager to ruthless goalscorer - The Newcastle striker and Sweden international initially struggled at Borussia Dortmund after leaving hometown

Donyell Malen gives first interview about joining Aston Villa and what we should expect from him in the short-term.

Aston Villa have completed the signing of Borussia Dortmund's Dutch winger Donyell Malen. The 25-year-old is Villa's first signing of the January transfer window as he puts pen to paper on a xxxx-year contract. Malen enjoyed a productive spell in Germany, netting 39 goals and providing 20 assists in 132 appearances.

Aston Villa's new man is a player once tipped for the top of European football, who has yet to fully convince the world of his talent

Ten Hag has been out of work since his sacking by Manchester United in October and has since been spotted attending various matches in his native Netherlands.