The summer transfer window was slammed shut on the very first day of September. Teams across the top leagues broke the bank in the name of alteration and squad strengthening, with some eye-popping transfer fees.While some seemed content with their clubs' transfer business, others believe they could've done a bit better in a market witnessing billions spent in transactions. From Lionel Messi to Karim Benzema, a number of notable names have embraced their new employers.TimesofIndia.com takes a look at the top ten most expensive deals of the 2023...