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Bayer 04 Leverkusen on Twitter: "TRANSFER UPDATE @IKieseThelin has joined the Werkself on loan! Welcome to Leverkusen, Isaac! https://t.co/dFFvfU97fs" / Twitter
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Bayer Leverkusen's summer transfers: who have Die Werkself signed and what do they bring to the team? | Bundesliga
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Bayer Leverkusen send Kai Havertz transfer message to Florian Wirtz amid Liverpool rumours - Liverpool Echo
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