Marcos Alonso, Joao Cancelo, Joao Felix and Sergino Dest will all be leaving Barcelona before the start of the new season.
Few loan spells capture the essence of player resurgence like Sergino Dest's journey with PSV Eindhoven.
Holders Manchester City will face FC Copenhagen in the last 16 of the Champions League.
Arsenal's much-changed side were lucky to leave the Netherlands with a 1-1 draw in their dead-rubber Champions League tie against PSV Eindhoven.
Mikel Arteta admitted to becoming emotional on a "beautiful night" as Arsenal marked their long-awaited Champions League return with a stylish 4-0 win against PSV Eindhoven at the Emirates Stadium.
FC Barcelona and PSV Eindhoven have reached an agreement for the loan of the player Sergiño Dest until 30 June 2024.