Manchester United hero Rio Ferdinand has lamented the club's summer transfer business.

The Red Devils have only landed Donny van de Beek so far this window, despite chasing multiple targets for months.

Jadon Sancho, Alex Telles, Jack Grealish and many, many more have been targeted and subsequently missed in recent months, leaving Ole Gunnar Solskjaer fed up.

United have just two days to complete any late business to ease fan frustration.

But Ferdinand admits it's a problem that multiple targets were eyed at the start of the summer - yet haven't been brought in by Ed Woodward and his team.

"The most frustrating thing for Man Utd fans, is that we've all been very aware of who the targets were at the beginning of the window. That's the frustrating element," he told BT Sport.

"You look at it, is Covid playing a part in the financials? There's purse strings having to be pulled a little bit. We saw left-back and right-wing are the areas they are looking for but then all of a sudden the season starts, the players haven't been brought in.

"All of a sudden a defeat to Palace at home absolutely ignites the negativity that surrounds the place and makes it a situation it never was.

"We rewind two months previous, everyone was saying, 'Well done, Ole'. Got them into Champions League position, the club's on this upward trajectory now and two months - because there's not been the signings and a first defeat of the season at home - really changes the picture massively for the club."

On whether Man Utd can get close to challenging without making additions before Monday, Ferdinand added: "No. Not in my eyes. Champions League will be the target for me realistically."

Solskjaer has been keen to defend the United board in recent weeks, despite the lack of new arrivals.

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"I'm very happy working with the players I've got," he told Sky Sports.

"But also, the part of the job is to improve the squad all the time, and so far I've been backed. We are working hard to be competitive again, amongst the best.

"I think football now is different from what it was six or eight months ago, and these times are very unique. To get deals done you need to monitor a player for a long, long while, and monitor your target, and I feel the process there has been working well."