The agent of Porto midfielder Steven Defour doesn't expected Manchester United boss Sir Alex Ferguson to revive his interest.

Ferguson famously wrote to Defour while he was still at Standard Liege recovering from a serious knee injury.

"That letter is still cherished at the Defour home and I have a copy of that letter," said agent Paul Stefani. "That was a nice gesture from a great coach, but Manchester United is not an issue. I think they have other options at United."