Alonso left Liverpool for Real Madrid in the summer of 2009 and insists he is happy with life in Spain.
When asked if he would ever consider a return to Liverpool, Alonso told Liverpool tv: “Why not?
“I think that in football so many things change, and why not? I have my red passion and if circumstances arrived then why not?
“At the moment I don’t know what is going to happen, but it could be a possibility. Never say never.”
Alonso spent five years at Liverpool.
“It was difficult because Liverpool has been and always will be very special,” added Alonso. “It is in my heart because I have lived very intense things there.
“I miss lots of things. I miss the lads, I miss the atmosphere at Melwood – it was a great place to work, and the scenario of Anfield is unbeatable.
“The special nights I have been privileged enough to live, those will be in my memory forever and they are difficult to compare anywhere in the world.”