Postcard from Japan: Best fan images of Rugby World Cup Week 1

It's safe to say, after the first week of Rugby World Cup action draws to a close, that the on-pitch drama hasn't disappointed. From Uruguay's historic victory over Fiji to Ireland's stunning opening performance against Scotland, fans at home and in Japan have been treated to a veritable feast of rugby.
Off the pitch, the word from Japan is that the atmosphere around the host cities and inside the stadiums has been simply incredible. The noise and colour from the stands has pierced the bubble in which most of the players immerse themselves, and brightened the mood of many a sleep-deprived hack.