Mertesacker said: "It is good that we encourage each other. We have to do well as a team and that is what we need to do.
"So I think talking to each other is the best thing we can do, especially with 10 men. We need everyone on the pitch with this full mental strength and maturity.
"Mathieu tries to keep everyone alive and I think that is massive for the team, so I won't assess that as an argument.
"It is good to be alive and to show each other that we are ready to fight.
"We speak all the time during the game. We need to encourage each other."
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