The Premier League's record-breaking transfer window

Premier League clubs broke their all-time summer transfer record with total spending reaching £3.49 billion, according to figures provided to BBC Sport by Paul Macdonald of FootballTransfers.com. Deadline day alone saw £506.5 million spent, up from £391 million the previous year. The record total dwarfs the £1.13 billion spent just five years ago, with three of the 10 most expensive transfers in football history occurring during this window.