UEFA has begun investigations to dissect the unsavoury scenes that followed the conclusion of West Ham's Europa Conference League semi-final win over AZ Alkmaar on Thursday.
The Hammers progressed to the final of Europe's third-tier cup competition as Pablo Fornals' late strike guaranteed a 3-1 aggregate victory in Holland.
However, terrifying fallout in the aftermath of the match showed AZ Alkmaar thugs clash with West Ham fans and stewards in the ground as they ran on the pitch, attempted to break into restricted sections in the stands and cause fights.
One report suggests that a West Ham supporter nicknamed 'Knollsy' was involved in protecting the partners and families of Hammers stars by fighting off a mob that were aggressively trying to get to them.