Spain produced a scintillating second half performance to romp to a 6-2 victory over Belgium which was not always as comfortable as the scoreline suggests. Somewhere in Belgium's battling display there may be a blueprint for how to beat the world champions, but this was not the day for an upset in the end.

La Roja played with fire for 50 minutes as Belgium caused problems from set plays and in transition, as coach Elísabet Gunnarsdóttir said they would, twice coming from behind to level at 2-2 early in the second half.

But Spain flexed their muscles when it mattered, blitzing Belgium with four goals in the final 38 minutes to book their quarterfinal spot.

Belgium's problem was that ultimately they could not deal with Spain's quality and speed of thought in the final third. Very few teams can. Montse Tomé's side have registered over 30 shots -- 21 of which came in the second half -- and have now chalked up 11 goals in the tournament.

Future opponents will have seen some weaknesses in Spain here, though. Belgium exploited some defensive frailties. Justine Vanhaevermaet headed in from a corner after Alexia Putellas' opener and Hannah Eurlings scored a brilliant second for the Red Flames on the counter. She showed strength and composure to level the scores again after Irene Paredes had restored Spain's lead.

But, from there, Spain clicked through the gears as the rain finally eased up at the Stockhorn Arena. Esther González's third goal of the tournament restored their advantage and Mariona Caldentey added a fourth on the hour mark.

The final 30 minutes saw wave after wave of Spain pressure which eventually resulted in Clàudia Pina scoring a goal-of-the-tournament contender. It was pure Pina, curled superbly into the top corner from distance. Putellas added her second, her third of the tournament, with a deft finish late on to complete the rout.

Belgium will have few complaints about how they were outclassed in the end, and their Euros journey has more or less come to an end thanks to Italy getting a late point against Portugal, which means they cannot advance even with a victory in matchday three. -- Sam Marsden