Arsenal then confirmed the deal on their own social media page, with a short video captioned "he's a keeper".
Bayer Leverkusen have confirmed that their goalkeeper Bernd Leno has left the club to join Arsenal.
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According to the Daily Telegraph, Leno - who wasn't called by Joachim Low for the FIFA World Cup - will cost Arsenal somewhere around £22 million. The Gunners have needed a new goalkeeper for a number of years and they have signed one who has been highly rated in Germany for many years.
History was made that same year as he became the youngest goalkeeper to feature in the Champions League at 19 years and 193 days - in a meeting with Chelsea.
Leno did have Gunners' fans excited last week when he "liked" an Instagram post linking him with a move to the Gunners.
He now has six caps to his name, but was overlooked for World Cup 2018 duty this summer.