The La Liga giants have wasted no time in luring big names to the club this summer and already stand as the biggest spenders ever in a window

Getty Images10AC Milan | 2017Transfer money spent: €192 million (£172m/$215m)AdvertisementGetty9Manchester United | 2014

Transfer money spent: €195 million (£174m/$219m)

Getty8Chelsea | 2017

Transfer money spent: €206 million (£183m/$231m)

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Getty Images7Manchester City | 2015

Transfer money spent: €208 million (£185m/$233m)