GettyRonan MurphyLewandowski, Pulisic & 15 summer transfer targets in BundesligaBundesligaTransfersFreiburgAugsburgBorussia MoenchengladbachBayern MunichMainz 05Bayer LeverkusenFC KolnRB LeipzigSchalke 04Werder BremenHannover 96Hamburger SVHertha BerlinVfB StuttgartBorussia DortmundWolfsburgEintracht FrankfurtHoffenheimSome of the German top-flight's biggest names could be set to leave this summer, with many of Europe's top clubs sniffing around the best talent