Spain suffered their first defeat in qualifying for a major tournament in eight years when Miroslav Stoch headed a late goal to earn Slovakia a shock 2-1 victory in Euro 2016 Group C on Thursday.
This final result saw the visiting Spaniards lose for the first time in 37 World Cup and European Championship qualifying matches, a run stretching back to 2006.
Diego Costa particularly failed to impress in this latest international tie, and not for the first time. The Chelsea striker continues to struggle for Vicente del Bosque's side, and after drawing a blank against the Slovaks, he is now yet to score in six outings for the 2010 World Cup winners.
Nonetheless, this was not for want of trying. The adopted Spaniard had more than enough opportunities to finally break his duck - five in fact, three of which found the intended target - but he was thwarted time and time again by Liverpool's Martin Skrtel, who prevented him from having even an inch of space.
He found himself dispossessed on four occasions and conceded a worrying five fouls, as his frustrations in the final third became painstakingly evident. To further compound matters, Pablo Alcacer, the man vying for a Costa's place in Del Bosque's side, came on as a substitute in the 70th minute, before scoring just 11 minutes later with his only chance of the match.
In truth, his passing success (88% accurate) proved one of few positives, while he was able to create two scoring opportunities for his teammates; the team's joint-second highest total, level with Barcelona's Andres Iniesta.
The all-important maiden goal continues to elude Diego Costa. The Brazilian-born centre-forward still can't get off the mark for 'La Roja' and against Slovakia the drought continued. Having already bagged nine in just seven appearances for Chelsea, many will be left wondering why he's been so poor for his national side.