West Ham, charged with four counts to Millwall's three, said they would examine the FA's evidence before deciding whether to contest the charges. But it was Millwall who went on the offensive against the FA, questioning what they could do to control their fans in another club's ground.

"We maintain that we did everything in our power with regard to our ticketing arrangements for this game. Furthermore we expressed our concerns in advance about ticket allocations and arrangements in general.

"Our question for the Football Association is what can Millwall Football Club do to control individuals' actions once inside our opponents' stadium?"

Before the tie Millwall's chief executive, Andy Ambler, criticised the decision to halve Millwall's ticket allocation to 1,500, claiming it made it more likely that fans would seek tickets in the home areas of the ground.

One 43-year-old Millwall fan, described by police as "an innocent family man", was stabbed in front of his teenage sons.

Both clubs were formally charged by the FA with failing to ensure their fans refrained from racist behaviour, after West Ham's Carlton Cole and Millwall's Jason Price said they suffered abuse; with failing to ensure supporters "refrained from violent, threatening, obscene and provocative behaviour"; and with failure to ensure they "didn't throw missiles, harmful or dangerous objects, on to the pitch". West Ham were also charged with failing to prevent their fans entering the field of play, after the pitch was invaded three times during the match, which they won 3-1 after extra time. Both clubs have 14 days from last Friday to respond to the charges.

"In advance of the Millwall match, the club followed the strict advice of the police and relevant authorities at every stage of the planning process. That full cooperation continued on the night with the club working closely with police on a carefully set-out plan that was initiated and approved by the independent safety advisory group. We do acknowledge the appalling behaviour of a minority of fans inside the stadium and, in conjunction with the police, will continue to take strong and appropriate action against anyone found responsible."

Scotland Yard said today that there had now been 19 arrests for disorder in and around Upton Park that night. "The offences include pitch invasion, assault on police, breach of banning order, GBH, and violent disorder. Of the 19 arrested, 12 have been charged, 6 remain on police bail and one person has been released no further action," said a spokeswoman.