"To be back with the national team and with these teammates is the best thing possible, it is the greatest. In the time that I was last here and in returning, it has been amazing for me. I am very happy and proud," he told reporters at a press conference.
"After so long without being called up, you value it more. I have really wanted to help in qualification for the World Cup. The call-up was a big surprise to me because in the end I was not expecting it, whilst it is also a penalty for Albiol.
"In the end, one is a footballer and we understand about injuries, but I wish him well and I will enjoy these games. I am pleased and grateful for the call and I now want to help and support the team in these games that are so important."
Martinez has one Spanish cap to his name.