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Per Mertesacker will be eager to impress against his countrymen.
In several big games this season, Arsene Wenger has tended to go for a centre-back partnership of Thomas Vermaelen and Laurent Koscielny.
In the two Premier League games with Chelsea and Manchester City, that move backfired spectacularly, with Koscielny scoring an own goal in one and being sent off in the other.
It is time for Arsene Wenger to show faith in Mertesacker and believe that the German can produce on the biggest occasions. Although his performances have tailed off a little in recent weeks, he remains Arsenal's most consistent centre-back, and he'll be particularly keen to put in a big performance against his countrymen.
Alongside him it will be the captain, Thomas Vermaelen, while Wojciech Szczesny's position as goalkeeper will not be put under any threat from either Lukas Fabianski or Vito Mannone.
Kieran Gibbs is a similarly obvious choice at left-back. The alternative, Andre Santos, is out of favour and out of form, and seems to be on borrowed time at Arsenal.
There is a choice to be made at right-back between Bacary Sagna and Carl Jenkinson. Sagna's form has been patchy since he returned from injury, and in the meantime Jenkinson has evolved in to an excellent defender and full England international. For the first time since Sagna's arrival, the Frenchman faces genuine competition for this place.
Nevertheless, I expect Sagna to get the nod for this game. His experience will be vital against Bayern's dangerous winger Franck Ribery.