(CNN) The Rugby World Cup kicked off in England a week ago and has already captured the imagination of fans and newcomers to the sport all around the world.

Japan's opening-round heroics against South Africa -- one of the biggest upsets in sporting history -- was an occasion to savor and will be talked about for years to come.

The hosts stuttered to victory against Fiji in the tournament opener, but still hold hope of lifting the famous Webb Ellis Trophy on home soil.

Uruguay, with a team consisting of just three professional players, put in a tremendous performance against Wales and Argentina gave New Zealand -- the tournament favorites -- a real run for their money.