action
activity
arena
athlete
background
battle
box
boxer
boxing
challenge
club
combat
competition
competitive
concept
corner
dark
empty
event
fight
fighter
fighting
game
illuminated
illumination
indoor
isolated
knockout
light
match
mma
night
nobody
power
professional
ring
rope
ropes
round
show
sport
sports
spotlight
square
stadium
stage
studio
symbol
tournament
wrestling