I'm a grand sumo fan and my favourite rikishi is Kaisei! "Gambare!" is what spectators shout at the sumo to encourage the rikishi to do their best.
I hope I can make it to a tournament one day and encourage him for real! With any luck it'll be the day he finally beats a yokozuna!
Link
SquirrellyJay
Hope he'll be shouting "Kanpai!" later on when he swigs his sake