France beat Argentina 23-21 at Tokyo Stadium
Lopez drop-goal secures France win first match in Pool C (England's group)
Fickou and Dupont tries gave France 20-3 half-time lead
Pagadizaval & Montoya score for Argentina in second half
Australia fought back to beat Fiji earlier
Champions New Zealand face South Africa in Pool B at 10:45 BST
France 20-18 Argentina
Santiago Carreras breaks clear and he is urged on with every step by the vociferous Argentinean support.
The winger kicks forward but the loose ball is swept up by the covering French defence.
Don't go anywhere - we are set for a gripping final 10 minutes!
France 20-18 Argentina
Are the Pumas at it again?
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Smallsy: France should have had a player sin binned ages ago. Constant penalties in their own 22
France 20-18 Argentina
You may have wondered why Nicolas Sanchez was not taking that penalty.
The fly-half was replaced by Benjamin Urdapilleta moments before the penalty.
Can the replacement outside-half inspire a famous Argentinean comeback?
France 20-18 Argentina
Bobby Skinstad
Former South Africa captain on BBC Radio 5 Live
The French team just haven't turned up in this half and now the Argentina backs have joined their pack in dominating.
France are making so many errors you think Argentina will be able to apply enough pressure to force them to make more.
Benjamin Urdapilleta
Benjamin Urdapilleta has the easy job of knocking the ball over from close range.
The Pumas are just two points behind now and France have totally gone off the boil after an impressive first half.
20 minutes remaining...
France 20-15 Argentina
The noise is deafening inside the Tokyo Stadium.
The star of the first half, Damian Penaud, concedes a needless penalty as he tries to leap over the ruck to contest for the ball.
That's the advantage and Argentina throw the ball wide but France stifle them in defence.
It's back for the penalty we go.
France 20-15 Argentina
Bang!
Romain Ntamack takes his time over a cross-field kick and Marcos Kremer lines up the young fly-half.
He's back to his feet rather swiftly but that was a huge hit and Argentina will have the throw at the line-out.
France 20-15 Argentina
Bobby Skinstad
Former South Africa captain on BBC Radio 5 Live
What an impact from Montoya - he's had three line-outs and been absolutely pinpoint - but the power of the front three players in that driving maul allowed Montoya to get over.
All the momentum is with Argentina in this second half. They have used their forward pack, stopped their mistakes and looked after their own ball.
France have not had possession and been unable to attack the way they did in the first half. Their pack is not big enough to handle it.
Julian Montoya
Momentum has definitely changed here and the Argentina fans have found their voices.
Julian Montoya throws the ball in from the line-out before joining the maul and rolling over the
Nicolas Sanchez misses the conversion but the Pumas are right back in this game as the noise levels rise.
Image source, Getty ImagesFrance 20-10 Argentina
The Argentina replacement hooker will have another line-out from the five metre mark as the Pumas win a penalty and kick for the corner again.
France are on a warning here now and the pressure is building.
France 20-10 Argentina
Julian Montoya replaces Agustin Creevy to win his 50th cap and he is straight into the action as he takes the line-out.
France 20-10 Argentina
Argentina are ramping up the pressure now as Nicolas Sanchez kicks deep into the French half.
The Pumas have possession close to the French line but Tomas Cubelli throws a forward pass and that is a let off for France.
Antoine Dupont clears from the subsequent scrum and Argentina will have to build again.
Image source, Getty ImagesFrance 20-10 Argentina
Both sides make changes.
First, Ramiro Moyano is replaced by Santiago Carreras for Argentina.
France respond by making a double change in the front row as Camille Chat and Demba Bamba replace Guilhem Guirado and Rabah Slimani.
France 20-10 Argentina
France are back on the front foot from the restart and Antoine Dupont nonchalantly kicks through but Jeronimo De La Fuente is on hand to take the loose ball.
The ruck is set up but France win the penalty as Argentina are penalised for playing the ball on the ground.
France 20-10 Argentina
Bobby Skinstad
Former South Africa captain on BBC Radio 5 Live
Argentina have taken risks to get over the line but it's paid off and they are back in the game after just two and a half minutes of this half.
Guido Petti Pagadizaval (con Nicolas Sanchez)
Well well.
The gamble pays off and could this be the start of something special?
Argentina claim the ball in the line-out and Guido Petti Pagadizaval barrels over from the back of the maul.
Nicolas Sanchez kicks the conversion.
Game on.
Image source, ReutersFrance 20-3 Argentina
Argentina retrieve the ball and roll through the phases before play is brought back for a penalty as Gael Fickou is penalised for being offside.
Nicolas Sanchez opts for the corner and that is an early sign of intent.
France 20-3 Argentina
Nicolas Sanchez gets us back underway...
HT: France 20-3 Argentina
It's worth remembering, France finished fourth in the Six Nations this year, but they have definitely announced themselves on the world stage with a flowing first half performance.
Romain Ntamack has been calm and collected at fly-half, but winger Damian Penaud has been the standout performer.
The Clermont man played a crucial hand in both tries and beat more defenders (7) than any other player on the pitch in the opening 40 minutes.
Elusive.
Image source, Getty Images