English Premier League clubs swelled the bank accounts of continental rivals in a summer of record-breaking spending that ended Wednesday with the biggest shock of the transfer window: David Luiz's return to Chelsea. The flamboyant Brazilian is back at Stamford Bridge after two years at Paris Saint-Germain to reinforce Chelsea's defense under new manager Antonio Conte. While Chelsea sold the 29-year-old for around 50 million pounds ($84 million in 2014), the London club has re-signed him on a three-year contract for about 20 million pounds ($26 million) less. More...