The goal was scored by the portuguese team Benfica, against Porto, another portuguese team. The guy who actually scored the goal is Matić, a serbian player.

Awesome sauce:

Brilliant! Absolutely brilliant!

Definition of golazo:

Football / soccer expression referring to an awesomely amazing goal.

This term is used by Spanish speakers all around the world.

Source: http://www.urbandictionary.com/define.php?term=golazo