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Movement: Down six
Transfers In: Son Heung-Min (Hamburg, £8.5 million), Andres Palop (Sevilla, free), Robbie Kruse (Fortuna Dusseldorf, £1.94 ), Giulio Donati (Inter Milan, undisclosed)
Transfers Out: Daniel Schwaab (VfB Stuttgart, free), Junior Fernandes (Dinamo Zagreb, season-long loan), Hajime Hosogai (Hertha Berlin, undisclosed), Daniel Carvajal (Real Madrid, £5.5 million), Michal Kadlec (Fenerbahce, undisclosed), Michael Rensing (Fortuna Dusseldorf, free), Christoph Kramer (Borussia Monchengladbach, season-long loan), Andre Schurrle (Chelsea, £18.7 million)
Bayer Leverkusen's excellent 2012/13 season only means one thing: the club is bound to lose its biggest stars. Plenty of individuals have departed, including Spanish right-back Daniel Carvajal, whose return to Real Madrid was confirmed on the club's official website.
Sami Hyypia has worked quickly to ensure Leverkusen replace quality with quality. As reported by The Guardian, the signing of Son Heung-Min is looking more important now that Andre Schurrle's move to Chelsea has been confirmed, as does the signing of Donati, now that Carvajal has moved on.