Greeks are split on whether to accept an offer by creditors that Prime Minister Alexis Tsipras calls a "humiliation"
Two supporters were kept in overnight and a local hospital spokesman said one fan had suffered stomach wounds as 10-man United lost their quarter-final, first leg 2-1.
Italian Prime Minister Romano Prodi has promised drastic measures to confront soccer violence after a policeman died in clashes between rampaging fans at a Serie A match in Sicily.