LET THE game be, is the advice from Port Adelaide midfield manager Michael Voss, who is cautioning the football world against a preoccupation with congestion in the modern game.

With the Power one of the League leaders for stoppages in 2015, Voss is well placed to comment on the game's sometimes suffocating congestion.

Only Fremantle averages more stoppages a game (30.7), with Port hot on its heels (30.6).

Voss said time was required to allow any issues to sort themselves out rather than seeing the AFL swoop in to try to legislate change.

"I hear stories of one era and another era – was it better watching footy then or watching footy now?

"Here's the facts: the facts are that there are terrible games in every single era, and you'd say in every single week of any time that I've ever watched football," Voss said.

"When we go forward and we make these decisions let's make them … [when] we've got all the evidence in front of us and we can be educated.

"Let's not chase it; coaches are looking at this game for hours and hours on end, pulling it apart, we're seeing where the advantages can lie, and when you have that many coaches looking at the game and how you can manipulate space then you've got to go forward with just a little bit of [caution].

"The game has a great way of being able to evolve … we've gone to a sub, now we're talking about not having a sub, so have we gone forwards or have we gone backwards?"

The Power will hope to make the most of every stoppage it generates in Sunday's Showdown against Adelaide, with Voss predicting the game to be played in torrid fashion despite the brotherhood seen between the two clubs since Phil Walsh's death.

Both playing and coaching groups attended the memorial service for Walsh on Wednesday, creating a guard of honour through which Walsh's family walked at the service's conclusion.

The Crows sit ninth on the ladder, just six premiership points ahead of the 12-placed Power, and Voss said a win was crucial to both teams' finals hopes.

"I'm quite comfortable that I sit behind glass watching the game, but there's just some games you'd like to play in, and I'm sure the first 15 minutes of this game will be a game you want to play in," he said.

"That's the sort of game it's going to be, you'd expect there would be emotion and passion from both teams and they'll play in a very torrid fashion … everyone clearly knowing what the stakes are at hand, but at the same time making sure that each contest they win and they give themselves an upper hand."