Wikipedia -Bayer 04 Leverkusen Bayer 04 Leverkusen, officially known asBayer 04 Leverkusen Fußball GmbH(German:[ˌbaɪ̯ɐˈleːvɐˌkuːzn̩]) and commonly known asBayer Leverkusenor simplyLeverkusen, is a German professional football club based in Leverkusen, North Rhine-Westp...