Beowulf vs. Grettir: the 11th-century hero showdown you did need

We have all seen the Avengers, so we know who the strongest one is. But what about the heroes of old? What would happen if, let’s say, Beowulf, the great Geat warrior would have to fight against Grettir the Strong? What happens when Anglo-Saxon epic clashes against Icelandic sagas? Read to find out!