Spain kicked off their 2018 World Cup qualifying campaign with a faultless win over Liechtenstein on Monday night.
Julen Lopetegui's first competitive game in charge saw La Furia Roja smash the Central European microstate 8-0 to get Group G underway at the Estadio Municipal in Leon.
Costa started it all off on 10 minutes when heading home Koke's corner which was strangely Spain's only goal of the first half.
It took them a further 45 minutes to add a second and it came when Roberto was fed by City winger Nolito, who ended the match with three assists, with the right-back poking beyond Liechtenstein keeper Peter Jehle.
On 59 minutes, it was 3-0 when Silva got on the end of a perfect cross from Vitolo to knock home from close range before the pair combined in the opposite order to make it 4-0 less than a minute later.
5-0 came in the 66th minute thanks to Costa who nodded home the rebound from his initial effort prior to Morata getting in on the act with a quick-fire brace in the 82nd and 83rd minutes - both very well-hit efforts.
And the rout was rounded out at eight when Silva produced a tremendous finish in injury time.