Magistrate Farah Azura Mohd Saad issued the remand order to enable all the suspects, aged between 19 and 29 years, to be investigated under Section 147 of the Penal Code for rioting.
The incident took place when a group of Harimau Malaya (national squad) supporters became frustrated after Malaysia lost 1-2 to Vietnam and allegedly threw objects at Vietnamese supporters.
In the commotion, one Vietnamese supporter was injured.
Malaysia qualified for the final after defeating Vietnam 4-2 in the second leg semi-final at the My Dinh Stadium in Hanoi, yesterday.
Meanwhile, Selangor CID chief Datuk Mohd Adnan Abdullah said the nine suspects were among 15 football supporters wanted to assist investigations.
He said the men were detained around Johor, Kuala Lumpur and Selangor between 10.30pm last night and early this morning.
"We are still looking for the remaining six individuals whose pictures have been distributed to the media for help to expedite the investigation.
Mohd Adnan (right) and his officer holding up photos of the suspects wanted by police to assist investigation into the scuffle, at a media conference on Tuesday. - BERNAMApic/file
"We hope to wrap up the probe soon and refer the case to the public prosecutor for further action," he told a media conference at the Selangor contingent headquarters here this evening.
The Harimau Malaya squad are scheduled to face Thailand in the first leg final in Bangkok on Dec 17 and the tournament finale in Kuala Lumpur on Dec 20.
