Lamine Yamal broke the deadlock with just one minute and ten seconds on the clock, beating Livakovic with a crisp, angled left-footed finish.
Having needed just over 100 seconds against England, the Spain star required even less time against Croatia, scoring after just 70 seconds.
After taking a heavy knock moments earlier, the Barcelona winger exacted swift retribution at the end of a slick team move on their very first dangerous attack.
Baena picked up possession infield and looked for Fermin on the edge of the box, who dummied to let the ball run through to Lamine Yamal. Wearing the ’19’, he collected it out wide before unleashing an angled drive to fire his side into a 1-0 lead.
