A goal from Sevilla winger Jesus Navas just two minutes from the end sealed the deal for Spain, who, until that point, were playing a precarious game. They conceded some gilt-edged chances to their opponents, who needed just one goal with the score at 0-0, to win
Of course, it could be said that La Furia Roja knew a point would be enough to progress. They merely focused on retaining possession and limiting Croatia's chances.
Nonetheless, their lack of conviction in the final third and defensive lapses in concentration would've undoubtedly cost them—had they been playing the likes of Germany, Italy or France.
Here are five things Spain will have to improve on ahead of their quarterfinal clash against France, England or Ukraine.