The matches are being played in four different stadiums across four cities - Saint Petersburg, Moscow, Kazan, and Sochi - and feature hosts Russian Federation along with the six winners of the FIFA confederation championships and the 2014 FIFA World Cup champions, Germany.
Colombian referee Wilmar Roldan called the decision back to the VAR (Video Assistance Referee) before dismissing Mabouka, although he had to check twice after originally dismissing the wrong player.
The drama came on a landmark day for Joachim Low, who was able to celebrate his 100th win as Germany's head coach in his 150th game in charge.
In the Chile-Australian match, the Chileans emerged winners after ending in a draw and will move to the semis alongside Germany in group B.
Arab States Issue List of Demands to End Crisis With Qatar
Suggesting the penalties would only be economic and diplomatic, he said "there is no military element to this whatsoever". Qatari officials have not yet responded to CNN's requests for comment but said they would issue a statement later Friday.
He is one of a handful of players to score at three separate World Cup tournaments, after his goal against Serbia in 2010 as well as strikes against Chile and the Netherlands in Brazil in 2014. "Our opponent didn't allow us to play the way we usually do, they were very good at pressing".
Taking up a more advanced role than in his previous outing against Chile on Thursday night, Can was tasked with supporting the likes of Julian Draxler and Kerem Demirbay.
Cameroon's troubles worsened on 64 minutes when they went down to 10 men, following a straight red card for Ernest Mabouka after a raised foot in a challenge on German midfielder Emre Can. Werner evaded Adolphe Teikeu to meet a cross from Kimmich and open his worldwide account with his stooping header.
Australia need to win to win by two goals or more to earn a berth in the semifinals. Substitute Martin Rodriguez leveled the game at 1-1 at the 67th minute, securing Chile's place in the second round.
The best chance of a tight first-half fell to Germany's Joshua Kimmich as he headed wide from six yards with the goal gaping.
Benjamin Henrichs then set up Werner for his second goal, cutting the ball back for a straightforward finish to make sure of Germany's win, Goal.com reports.
"He has a killer instinct", Loew said. "They're under pressure. You've seen that we caused them some real problems, that we matched a world-class team".