Matias Garafulic is at the centre of everything here, and not in a good way.

After giving away a penalty with a late tackle, he almost immediately is caught offside to hand Japan another chance just metres from the Chile line.

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For all that Chile are trying to get the ball in hand, they are also making sloppy errors.

Inaki Ayarza, the full-back, drops a simple pass to invite Japanese pressure with a scrum inside the Chilean half.

Chile really are trying to play exciting rugby!

From a scrum they immediately move through the hands and Matias Garafulic, immediately identifiable by his bright yellow scrum cap, almost gets away from the defence.

Rodrigo Fernandez, their fly-half, is looking to spark front-footed moves whenever he gets his hands on the ball. He is the danger man.

A moment of glory for Chile - then an immediate reality check.

They are trying to play some good stuff, again finding their winger as Domingo Saavedra tries to run away, however he is stopped by a fine Michael Leitch tackle.

The last team to win on their World Cup debut was Uruguay, who beat Spain in 1999.

Can Chile emulate their continental cousins? They certainly look undaunted so far.

Have Chile scored their first World Cup try?

They move the ball through hands well, it looks like the chance is lost with a loose pass, but then the ball breaks free, Rodrigo Fernandez kicks on and touches over the line.

It has gone to the TMO.

Image source, Reuters

This Japanese side are an unknown quantity - in the four years since the most recent World Cup, they have played just 17 international matches.

So far they have been playing at Chile's tempo, although they move the ball through the hands for the first time and look as if they could have pace to trouble the South Americans.

Image source, Getty Images

Chile seeing plenty of ball in the opening seconds. They are being backed by a very noisy, red-clad contingent of fans who sang the anthem with real gusto. Great scenes.

Here we go - game one of three today is under way.

Image source, Getty Images

Image source, Getty Images

The players have emerged from the tunnel into a hot, humid, noisy stadium in Toulouse.

A reminder of the teams today:

Japan XV: Semisi Masirewa; Kotaro Matsushima, Dylan Riley, Ryoto Nakamura, Jone Naikabula; Rikiya Matsuda, Yutaka Nagare; Keita Inagaki, Atsushi Sakate, Jiwon Gu, Amanaki Saumaki, Amato Fakatava, Michael Leitch, Kanji Shimokawa, Jack Cornelsen.

Replacements: Shota Horie, Craig Millar, Asaeli Ai Valu, Warner Dearns, Shota Fukui, Naoto Saito, Tomoki Osada, Lomano Lemeki.

Chile XV: Inaki Ayarza; Santiago Videla, Domingo Saavedra, Matias Garafulic, Franco Velarde; Rodrigo Fernandez, Marcelo Torrealba; Javier Carrasco, Diego Escobar, Matias Dittus, Clemente Saavedra, Javier Eissmann, Martin Sigren, Raimundo Martinez, Alfonso Escobar.

Replacements: Augusto Bohme, Salvador Lues, Inaki Gurruchaga, Pablo Huete, Santiago Pedrero, Ignacio Silva, Lukas Carvallo, Jose Ignacio Larenas.

You can get in touch using the details above - we're keen to hear your views on this game and every match today.

Can Japan reach the knock-outs again? Do you back Chile to cause an upset? How and where are you watching the games today?

Image source, Getty Images

With a heatwave crossing Europe right now, World Rugby has confirmed there will be water breaks at all Rugby World Cup matches this weekend.

The breaks will take place midway through both halves at a natural break in play, at the decision of the referee.

With temperatures potentially hitting 31 degrees in Toulouse today, those water breaks will certainly be needed. It is expected that the heatwave will break in the next few days however, with cooler temperatures for the next round of fixtures.

One of 30 Chile players to play his club rugby for Chilean side Selknam, Fernandez is a running threat with ball in hand, scoring two tries in his past three internationals in the lead-up to the World Cup in France.

The 27-year-old also scored World Rugby's try of the year in 2022 for his length-of-the-field score in their World Cup qualifier against the United States.

Goal-kicking is not something he needs to worry about as he earns his 33rd cap today, with wing Santiago Videla on duty from the tee.

Image source, Getty Images

The question of fly-half has hung over Japan in the build-up to this competition, with Seungsin Lee playing in the Pacific Nations Cup, in which he kicked 22 points.

Lee may return to face England in Japan's second match, but today coach Jamie Joseph has given the nod to 2019 World Cup squad member Rikiya Matsuda.

Image source, Getty Images

Image source, Getty Images

According to stats gurus Opta, both of these sides have a less than 0.5% chance of winning this World Cup.

But, as Japan proved when beating South Africa in 2015, the underdog can often have their day. England and Argentina are the supposed big dogs in Pool D, but England have had far from the best preparation and the Pumas were well below par in losing to England on Saturday, so the Japanese will hold plenty of hope of a top-two finish.

As for Chile, they have the freedom of the debutant, playing without pressure. And if the World Cup is no time for dreaming, when is?