Paris Saint-Germain's transfer business this summer is being hailed as some of the best of all-time as the normally big spending French club have used free transfers to improve their squad.Lionel Messi is the latest player to join the club this summer without a transfer fee and Rio Ferdinand believes it is better than any other summer window for any club.Speaking on BT Sport, he said "I think it is the best transfer window of any team.
Free transfers galore of top, world class genuine winners and then they've capped it off at the end with someone like Messi."However, how does PSG's business line up against some of the greatest transfer windows in recent history? Daily Star Sport takes a look...Even before the arrival of Lionel Messi on.
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