no
he defeated Grendel and Grendel's mother
a gladiator
The only official job duty of a professional fighter in the Ultimate Fighting Championship is to show up and fight when scheduled.
He brings it up to show that Beowulf isn't high and mighty like he makes himself out to be. Unferth wants to show that Beowulf isn't perfect.
Because he respects Beowulf and feels the need to show honor and braver to Beowulf who was the king at the time
Mercenary.
A professional MMA fighter
practice makes perfect and everyone if u want to become a professional i am a young professional fighter i love to fight u have to stretch 2 hours a day to become a great fighter.
To show that he wasn't immortal
It really does depend on the breed of dog, but in most cases the professional UFC fighter would win.
you have to be a badass
The swiftness of the horse was very unsually. The young fighter fought with the swiftness of a professional fighter.