Which preposition to use with bruiser

of Occurrences 2%

Even as animals in a pit they fought, now on their knees straining each to break the other's hold, now wallowing together on the floor, now on their feet, slogging like bruisers of the old school.

with Occurrences 1%

It was just about this time that Jim Peters became the idol of England through knocking out the Black Bullya coloured bruiser with an immense capacity for eating beefin a couple of rounds.

Which preposition to use with  bruiser