Bayer Leverkusen have jumped into the fallout of Arsenal's opening day defeat to Manchester City on Sunday.

Bayer poked fun at Arsenal after Petr Cech almost scored an embarrassing own goal.

Cech screwed a first-time pass to Shokdran Mustafi that travelled just wide of his post.

The mistake quickly went viral on social media with fans also questioning why the veteran stopper had started ahead of new signing Bernd Leno.

Leno's former club Bayer also got involved, responding to a clip of the blunder with two tweets saying: "We might know a guy," and "In case you all were wondering how to play out of the back."

In case you all were wondering how to play out of the back... pic.twitter.com/LZkxznsGPs

— Bayer 04 Leverkusen (@bayer04_en) August 12, 2018