Did this for practicing drawing fight poses.

It's also a bit of backstory between Vilkas and Fenrir when they were pitted against each other for rank. This is how their fight ended and how Fenrir almost lost his eye. Them being paired off wasn't much of a fair fight otherwise, Vilkas is a lot scrawnier and can barely use his left arm (result of a fight between them a few years before); their father is the one who pushed for it to be arranged, to prove his point that Fenrir is some sort of prodigy and that Vilkas is just some runt.