Romero has made over 100 national team appearances since his national team début. Born in 1980, he first showed interest in the sport at the age of nine and has never looked back. In 1997, he turned pro and signed his first contract with Valladolid. He then went on to play for Ademar de Léon, BM Ciudad Real and is currently signed to FC Barcelona Cifec. To his credit, in such a short time, he has 8 national and 2 European titles under his belt and his biggest sporting achievement to date was being part of the national team delegation that took the gold medal at the 2005 World Championship in Tunisia.