It's mentioned in the GP post. I'm in no way hiding or excusing what the hooligans were up to, only noting that the GP made an extremely one-sided statement, whereas the Amsterdam police statement covers all the disorder, including confirming what the GP said.
> It sounds like maccabi rioters started it.
And if there were no opponents to them, then it would only be Maccabi hooligans being arrested. But instead they had opponents who were equally ready to riot and use violence, including against random people who the attackers simply felt were Jewish or Israeli.
I put it to you that the Maccabi hooligans were not the only thugs in Amsterdam that week.