Man United must heed Ralf Rangnick and Roy Keane warnings before possible Burnley banana skin

A trip to the side sitting bottom of the table would ordinarily be just what the doctor ordered after a chastening FA Cup defeat.

The problem for Manchester United is this isn’t any other season, and they’re not coming up against your usual basement dwellers.

Friday’s fourth round exit encapsulated everything that has been wrong with United’s campaign so far. Wasted chances and star players underperforming once again proved to be their downfall as a dismal season hit yet another new low against Middlesbrough.

Barring some kind of miracle in the Champions League, United’s hopes of lifting any silverware this season are now all gone, and all that really remains to salvage is a top-four finish – and given how tight the race is there, they can barely afford any more slip-ups this season.

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For a side boasting the attacking talents of Cristiano Ronaldo, Bruno Fernandes, Jadon Sancho and Marcus Rashford to pass up some of the opportunities they were presented with on Friday night is unforgivable, and interim boss Ralf Rangnick knows that.

"We gave away too many chances, especially in the first half," said Rangnick, reflecting on United's failure to convert their chances.

"We should and could have easily been up 3-0 after 45 minutes and even in the second half we missed some great opportunities, even after they scored their goal that shouldn't have stood.

"But Bruno's chance was