Virtually every friendly saw new faces who needed identifying as a stack of players arrived in an effort to earn permanent deals.
That proved the case for the likes of Jay Mingi and Jayden Reid, but what about all the other men who failed to gain contracts.
We’ve located where those players ended up, with clubs at the highest level down to non league now their homes.
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13. Brandon Mason
A deal failed to advance with Mason picking up a hamstring injury, which required surgery after exiting Coventry. Now recovered and currently making a favourable impression on trial with Championship side Reading. Photo: Morgan Harlow
14. Renedi Masampu
The former Chelsea and Met Police full-back failed to earn deals with Sheffield Wednesday and Pompey, but joined Birmingham where he's made six PL2 appearances for their under-23 side. Photo: Clive Howes - Chelsea FC
15. Dan Gyollai
Dan Gyollai returned to Peterborough after failing to earn a deal. Joined National League Maidenhead last month on a one-month deal and made one appearance to date. Photo: David Rogers
16. Ludwig Francillette
Giant defender didn't impress Danny Cowley but earned a contract with League Two Crawley, where he's made 15 appearances this season. Photo: Charlotte Tattersall