Does anyone know how this trail effect was made and how i could replicate it?

[Sandsii]

In this Premier League intro it has this super unique effect that trails the player's movements and I cannot figure out how it was done. If anyone has any ideas then i would love to hear them

https://www.youtube.com/watch?v=11yq1EW0dlQ

[Rick Gerard]

Trapcode Particular. Check out the "New Features" video:

You can use text and masks as particle emitters. You can also use OBJ files. Rotoscope the players or shoot them against greenscreen, generate a mask, make the mask the emitter.