West Ham must wait to hear whether they will face sanctions over the crowd trouble that marred Tuesday's Carling Cup tie with Millwall.
One man was stabbed as trouble flared outside Upton Park prior to kick-off while police also needed to intervene to quell numerous disturbances during the game.
Former West Ham defender Julian Dicks told BBC Radio Five Live: "I thought it was absolutely disgraceful."
The Football Association launched an investigation into the violence on Wednesday while both clubs also pledged to probe the ugly scenes.
All three parties have vowed any culprits identified will face life bans while police inquiries could lead to criminal proceedings against individuals.
There have also been calls for any investigations to include all aspects of planning for a match between two local rivals that always had the potential for trouble.
Both clubs, and particularly West Ham, could find themselves under the FA's microscope concerning the conduct of their supporters.
"I know West Ham and Millwall fans have grievances between themselves but there is no call for what happened," he added.
"There is a lot of hatred between Millwall and West Ham, so it wasn't a great surprise, but it wasn't a nice thing to watch. It was pretty sickening. People who do that are not West Ham fans and are not football fans. At the end of the day most West Ham fans are there to watch them play football."
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