He went on to play a crucial role as the team won the Premier League in 2006/2007, while he was part of the squad in the next season as well.
"So some price was agreed, and I knew about it, and my agent was saying to me that they wanted to increase the price to make the most of it.
"So I let it go, but at some point, where you feel this opportunity will go because it's a January transfer [and] you see the clock ticking, you stand and say: 'No, they [United] will take somebody else and I don't want this to happen.'
"So I gave my word in some ways, they gave their words, and I said: 'No, that's not how it works.' If you say something, you keep your word, and I was really unhappy about the situation. Even if I'm professional, I express it. I have the right to speak and say: 'No, I want to go.'
"So I did what I think was the right thing, because everybody in this world, if you have a job opportunity somewhere else and there is no judgement, then you can go, you know, even [to the] competition. Sport's a bit more difficult. They used the public [to apply pressure]. But at the end of the day I knew I'd been really honest, I'd given my all, I'd helped them to promotion, so I had no difficulty to actually go where I thought was fair."