Perhaps the biggest upset of the World Cup is how Argentina, which had an all-time scoring differential of negative-31 in two previous World Cup appearances, secured its first point on the world's biggest stage.
Argentina is ranked No. 37 in the world. Australia has been the team, that Argentina played the last match against. We had to keep ourselves back and focused, and be very, very organized with that sort of attitude to come out with a counterattack. The eighth edition of FIFA Women's World Cup, 2019 is taking place in France.
"We were really a bit tight, and maybe it cost us the win", Sameshima, 31, said. "We are starting on our way and just starting to face up to these powerful forces in football". Japan - the 2011 World Cup champions - entered the game ranked No. 7 in the world.
Japan's passing supremacy - which yielded 61 percent of first half possession - remained consistent throughout the opening 45 minutes, but it didn't translate to goalmouth action, as Asako Takakura's side produced only two shots, neither of them on target, before the interval.
The closest chance came after nine minutes when Narumi Miura flashed wide of Vanina Correa's right-hand post from a promising position.
In a group with Japan and England, Argentina looked like one of the biggest long shots to advance and it probably still is, but Argentina played a flawless upset-manufacturing style.
"We knew that if we opened up, we would get hurt".
Japan has just one win in seven matches this year. She did, however, show yellow cards to two Japanese players late in the first half for less robust interventions.
"In the second half, they realized they had to be more offensive - so their tempo was faster and they attempted more shots at goal".
Buchanan charged into the box on a corner kick and her header bounced into the goal.
Canada's veteran striker Christine Sinclair, who needs four more goals to overtake retired American Abby Wambach as the top scorer in women's worldwide football, had a particularly hard night in front of goal. Later Monday Canada face Cameroon in Group E.