It is his third consecutive yusho and he is unbeaten in 25 bouts since his professional debut .
The sandanme championship is won by Shiga ( the future ozeki Tochiazuma ) .
It is Shiga 's third consecutive yusho and he is unbeaten in 25 bouts since his professional debut .
The sandanme championship is won by Shiga ( the future ozeki Tochiazuma ) .