Marco Asensio believes Spain have recovered the positive spirit of their pre-World Cup form following Tuesday's destruction of Croatia in Elche.
The Real Madrid star scored one and forced another four goals as the home side inflicted a 6-0 defeat on the World Cup finalists in their Nations League clash.
It was Croatia's heaviest ever defeat and the second time Spain have scored six times this year, having thrashed Argentina 6-1 back in March.
Spain's World Cup campaign ended in chaos and disappointment, as they lost to hosts Russia on penalties in the last 16 after coach Julen Lopetegui was sacked on the eve of the tournament for holding talks with Real Madrid without informing the Royal Spanish Football Federation (RFEF).