"We wanted to go out and try to win. No one expected us to win, and not many teams come to Old Trafford and win, but we achieved our target."
As many as 9,000 Leeds fans travelled to Old Trafford, helping to provide a great atmosphere for the game.
"Our supporters have had a lot of negativity over the last few years and we have given them a result to send them away delighted," said Grayson.
"Our fans were there for us. It is not just about taking 9,000 to Old Trafford. We have taken 3,000 to Bristol Rovers on a Tuesday night. Every away allocation, we sell. We regularly get 25,000 at home."
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