Described as mythical, lion-like creatures that "bring happiness and ward off evil," "Ren" and "G" -- together known as "Ren-G" -- were unveiled Friday as the tournament's official mascots.

The winning design was chosen from around 50 entries and similar depictions are seen throughout Japanese culture.

The pair, which have long, flowing manes, white fur and button noses, were filmed dancing and passing a rugby ball at the official unveiling.