If you are out and about in city in the coming days then expect to see more police as they prepare for a chock-a-block sporting calendar in Melbourne with up to 250,000 people attending four different games at the MCG.

About 95,000 fans are expected to attend Friday night's Brazil versus Argentina soccer match.

On Saturday afternoon, Hawthorn will take on the Gold Coast. This will be followed by Collingwood and Melbourne on Monday, with 75,000 people expected to gather for the Queens's Birthday AFL game when celebrities also brave the cold for the Big Freeze 3, raising funds to fight Motor Neurone Disease (MND).

On Tuesday, it is is back to the round ball with the Socceroos competing against Brazil.

A Victoria Police spokesman said additional police will be deployed across Melbourne, including Federation Square, Bourke Street Mall and Melbourne Central.

This comes after a 29-year-old Somali-born man, Yacqub Khayre, was shot dead in Brighton on Monday night when he opened fire on police killing a 36-year-old man and taking a woman hostage.

But Victoria Police Deputy Commissioner Shane Patton said the increased police presence was not due to any "specific threat" to the community.

"People should go about their daily business and enjoy everything Melbourne has to offer," Deputy Commissioner Patton said.

"It is completely understandable that people are feeling concerned following the incident in Brighton this week and other recent acts of terror.

"Investigators believe the man who was shot dead by police during the Brighton siege was acting alone. As such, there is no ongoing threat to the community. I can assure the public that police will have a significant presence throughout the city this weekend."

Deputy Commissioner Patton said Victoria Police would maintain an active presence in and around the stadium before, during and after the Argentina versus Brazil game which kicks off at 8pm, Friday night.

"Police will be there every step of the way for fans – at the transport hubs, on the walking routes to the stadium, outside the gates and inside the stadium," he said.

"Once the final siren or whistle blows, police will follow the same steps as fans heading home.

"The security arrangements may mean it takes a little extra time for fans to get into the ground, so we'd ask people to prepare accordingly."

Melbourne Cricket Club spokesman Shane Brown said there were already many "stringent" security measures in place at the MCG.

"MCG already has anti-car bollards on their concourse outside the stadium," Mr Brown said.

They were installed in February before the start of AFL Season. We had been looking at at it for a while, but the incident in Bourke Street escalated that thinking."

He said other practices such as bag checks, body scans with hand-held wands, and searching cars were in use for more than a year.

"Our [security] procedures have been quite stringent for quite sometime and they continue to be," Mr Brown said.

"The safety of everyone who comes to the MCG is our top priority and fans should be reassured that we are doing all we can to ensure everyone has a safe and enjoyable time."