He told manutd.com: "It's unbelievable. The first time it happened was just after I left. I wasn't sure how the fans would be with me because my time at United was not perfect. By 2005, I needed to play every week and feel like a footballer. The gaffer understood that. That's when I joined Villarreal and that turned out to be a great move.
"I played every week and scored lots of goals in a good team. I had a great understanding with [Juan Roman] Riquelme. A few months later, I was watching United against Liverpool with my brother at home near Villarreal. And we heard the song [sings]: 'He came from Uruguay, he made the Scousers cry.'
"We just looked at each other as if to say, 'Are we hearing the same thing?' He was as happy as me and we smiled for the rest of the game. I try and watch United and I'll often see games in a hotel somewhere in Spain, waiting to play. Sometimes I hear them sing and the team-mate I am rooming with will say, "What are you smiling for?" Then I'll explain. They can't believe United fans still sing my name so long after I left."