The semifinal round of Euro 2012 begins on Wednesday when Spain and Portugal do battle at Donbass Arena in Donetsk, Ukraine. The Portuguese upended their neighbors when the national teams last met in November 2010, but it will take a win on Wednesday to truly avenge Portugal's ouster from the World Cup at the hands of their Iberian rivals.

Euro 2012 Live Blog Coverage, Live Updates

The match will be broadcast on television on ESPN, and can also be viewed via streaming online video at WatchESPN.com and using the Watch ESPN app on mobile devices. Both English and Spanish commentary are available on the live stream.

Spain, reigning champions of both the European Championship and the World Cup continued its strong performance at Euro 2012 with a 2-0 victory over France. The Spaniards have been scored on just once at Euro 2012, in their opening match against Italy.

The Portuguese have the firepower to change that, as Cristiano Ronaldo leads his country with three goals out of the team's six in four games. His most recent score provided the margin of victory in Portgual's 1-0 victory over the Czech Republic in the quarterfinals, and he'll come into Wednesday's game with momentum as he looks to lead Portugal past the reigning champions.

Will it be enough to keep up with Fernando Torres and Spain? We'll find out.