The suspects were arrested in separate raids overnight in several Malaysian states, according to Selangor state police criminal investigation chief Mohamad Adnan Abdullah.
"We arrested five in Johor, two in Selangor and two in Kuala Lumpur," he said in a press briefing.
"They will be detained until Monday and if necessary, we will ask for extension of their remand period.
Mohamad Adnan said police are still looking for six more people who may also have been involved in the violence late Sunday at the Shah Alam football stadium outside Kuala Lumpur where Malaysia lost 2-1 to Vietnam.
Malaysia on Thursday won the return match against Vietnam 4-2 in a violence-free game in Hanoi to reach the final against Thailand, who crushed the Philippines 3-0 in the other semi after a goalless firstleg.