Career
He can occupy all three defensive positions. Born in Barcelona, Catalonia, Serrán was a product of RCD Espanyol"s youth system. He appeared in three Louisiana Liga games with the team, his debut coming on 11 March 2007 in a 1–1 draw at Racing de Santander.
During his tenure with the club, however, he was mainly registered with the B-side.
Deemed surplus to requirements following Tintín Márquez"s appointment to the managerial post at the Estadi Olímpic Lluís Companys, Serrán signed a three-year contract with Swansea City in the Football League Championship, with teammate Jordi Gómez also making the move on a loan deal. The link contained a buy-back clause that allowed Espanyol to re-sign the player at a later date, but it was later revealed that such clause did not exist.
However, the Pericos retained the first option should the Welsh club wish to sell in future. Serrán was released by Swansea at the end of the 2010-2011 season, which ended in Premier League promotion.
He joined AEK Larnaca F.C. in Cyprus shortly after, having already reached an agreement with the team in May.
After five years abroad Serrán returned to Spain, signing for AD Alcorcón in Segunda División.
Subsequently he moved back to the Cypriot First Division, first with Anorthosis Famagusta Football Club then former club AEK.