Former Manchester United midfielder Ray Wilkins feels their move for Real Madrid winger Angel di Maria is a sign of desperation.
Di Maria could join United for £75 million.
"At £75million, it seems a lot of money to me," Wilkins told talkSPORT.
"It's quite sad when one club - and I hate using the word regarding Manchester United - becomes so desperate that the transfer fee will be elevated massively.
"This is one case where, all of a sudden, it goes from £50m on Friday to another half of that. So we've gone to £75m for a player that can't get in the first team at Real Madrid.
"He's extremely talented, but I'm worried about the money. They have to bring a few more in and it could spiral and spiral.
"This is the second year when they haven't worked quick enough in the transfer market."
