The Daily Mail reports Monday nightâ€™s victory at Aston Villa extended a remarkable run that has seen the Gunners undefeated in every league match in which Koscielny and Mertesacker have completed 90 minutes, since a 2-1 home defeat against Manchester United on January 22, 2012.
That period has included 28 games, 20 of which have resulted in victories.
Off the pitch, the pair are close. They speak regularly, in English, about how best to deal with their next opponents, hatching detailed plans on how to ensure their invincible streak continues.
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