Will his recent £50 million investments pay off or will Pep Guardiola be red-faced by the signings of John Stones and Kyle Walker? The former Barca and Bayern boss has a history of making poor decisions in the transfer window...
Alexander Hleb - Arsenal to Barcelona (£12m)
Dmytro Chygrynskiy - Shakhtar Donetsk to Barcelona (£20m)
Zlatan Ibrahimovic - Inter to Barcelona (£57m and Eto'o to Inter)
Martin Caceres - Villarreal to Barcelona (£15m)
Mario Gotze - Borussia Dortmund to Bayern Munich (£31.5m)
Mehdi Benatia - Roma to Bayern Munich (£24m)
Nolito - Celta Vigo to Manchester City (£16m)