The Gunners have not lost a match the pair have finished since January 2012, for 23 wins in 32 outings during that time, creating a platform for the north London clubs rise to the top of the table this season.
Upon hearing the news, German centre-back Mertesacker admitted it was an unbelievable stat to share with his French colleague but was insistent that what they had achieved thus far is not enough.
"It sounds not real to me," Mertesacker told the club's official website of the statistic.
"When I first heard it, it sounded very weird. It's a good statistic but we have to build on that.
"I think we have shown a lot of people who criticised us a lot over the last two and a half years that we know each other much better now.
"We complement each other well, so it looks like that's a good partnership.
"I've played with many good centre backs with different qualities.
"But Laurent, he's one of the quickest players I've ever played with, one of the most mobile players, and he anticipates well a lot of balls so he has real strengths to be a good partner.
"For me it's easy to play alongside him. We both take advantages from each other so that is the main key I think."
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