Football fight in Singapore

Some striker took a cheap shot at a defender and the goalkeeper comes to the "rescue". Well actually he just wanted to beat up the assailant.

I guess that's normal when tensions are high in a football match. Everyone just wants to win but when the other wins unfairly or an unfair decision was made, players have the tendency to play it rough.

Frankly, the referee should have intruded and be firm towards the players rather than walking back deeper into the field. Give a red card ref!