The Japan Times report that a number of players had been on a drinking session following their final game of the Rugby World Cup when the incidents occurred.
Wales beat Uruguay 35-13 in their Pool D match at Kumamoto Stadium last Sunday and a number of players in the team then visited the busy Bacon Egg establishment.
It is alleged that one of the players tackled a male member of staff to the ground in the incident, and considerable damage was done the property before police were called.
