Sergio Agüero
In 2013, Isco was credited by "Marca" journalist Pablo Polo as being "the most promising young player in Spanish football", comparing his strength, skill, and low centre of gravity to Sergio Agüero, and his vision and passing abilities to Zinedine Zidane. Former Real Madrid captain Iker Casillas predicted in 2015 that Isco would become Spain's most important player.