A product of local Valencia CF's youth ranks, Romero only appeared once for its first team, on 5 December 2006, when he played 15 minutes in the club's 0–1 away loss against A.S. Roma for the season's UEFA Champions League after coming on as a substitute for Jorge López.
The vast majority of his senior career was spent in the Valencian Community, in the lower leagues – Segunda División B or lower.
