Eleven people were arrested -- including one for assaulting police -- after crowd violence marred an exhibition match between Scottish giant Celtic and Australian side the Central Coast Mariners in Sydney Saturday night.
Forty-seven fans were refused entry to ANZ Stadium for drunkenness, while another 27 were later ejected, police said.
The 11 arrests, which included two women, came as a result of people invading the pitch as the Mariners earned a surprise 1-0 win, with the alleged offenders facing fines and bans from the stadium.
"It is disappointing that drunken louts are under the impression they can attend these events and spoil everyone else's night," said acting superintendent Mick Rochester.
"The majority of fans were at the ground to see a game of football -- not to have the match spoiled by idiots."
After the match Celtic's manager Neil Lennon said he was not worried by the defeat, considering his team only arrived on Wednesday after a long flight from Glasgow to Sydney, Scotland on Sunday reported.
"The players condition and the quality, particularly second half, it was a remarkable performance when you consider the week they've been through," Lennon said.
Celtic defender Daniel Majstorovic, Greek striker Georgios Samaras, and South Korean Ky Sung-Yeung are scheduled to arrive in Perth on Tuesday to boost Lennon's squad in time for the second match of the tour against Perth Glory next Saturday. Celtic's final match in Australia is against Melbourne Victory on 13 July.