1) Marco Reus (Borussia Dortmund)
In what would be a highly controversial move, Bayern could also look to bring in Marco Reus from their rivals Borussia Dortmund this summer, following on from their recent raids on the club for Mario Goetze and Robert Lewandowski. Reus has previously stated that he would not make the same move in leaving Dortmund for Bayern, but Guardiola is now desperate to land the German international, who missed the World Cup through injury, as a replacement for Kroos. Although the 25-year-old plays a slightly more advanced role than his fellow countryman, he has shown great ability in a number of attacking midfield positions and could fit in well into this Bayern side. Manchester United are keen on him as well, though they are currently believed to be prioritising a move for Vidal, which could see the Bavarian giants emerge as surprise favourites to sign him this summer.