article_snippet: Bayer Leverkusen already has good experience despite Bayer Leverkusen age, having made Bayer Leverkusen Champions League debut against Chelsea in 2011 at 19.
article_snippet: Bayer Leverkusen contract runs to 2018 but Bayer Leverkusen said: 'The foreign option is certainly appealing.
article_snippet: but Bayer Leverkusen are reluctant to sell .