Rio Ferdinand expects Manchester United boss Sir Alex Ferguson to spend big this summer.

"We have to build on this now. I think the manager will be busy in the transfer market this summer and adding to an already great squad," he said.

"It would be criminal to throw away this achievement and not build on it.

"I would be very disappointed if this was the last major trophy we won. I know that's being greedy and we are you are expecting a lot of yourselves but you look around the changing room every day and on the training pitch you cannot help but have expectations like that."