Neil Craig says the forecast wet, windy conditions for the 20th showdown between Adelaide and Port Adelaide at AAMI Stadium on Saturday night will virtually ensure it is 'a close game with a lot of errors'.

And Craig has again stressed his respect for the Power, saying it has played 'some outstanding football' this season, and that the Crows' hot favouritism counts for nothing because of the unpredictable history of the previous 19 clashes between the fierce rivals (with Port leading 11-8)

Asked whether it was 'dangerous to write off Port', Craig said: "Sure is. I think if you go back and look at the history of the showdowns, you know, our club has been in that situation where we've been sort of the underdogs, written off or whatever, and come out with the result.

"You can understand why people will have an opinion either way, but the reality is, if you look at history, it's a great game and more likely to be a close game."

Craig said Port had looked 'very good' while beating St Kilda at AAMI Stadium two weeks ago and had also produced 'some outstanding football' against Collingwood at Telstra Dome last Sunday.

"I can't measure our best against their best," he said. "I don't know how you could do that. It could be the bounce of the ball. They play some classy footy. We're not sitting here saying it will be one-way traffic. It won't be."

Craig said the weather forecast had not altered the Crows' planning, but slippery conditions meant 'you have to be a bit careful of the style of play you want to try to access and put into place'.

"From a weather point of view, it's going to be really interesting for both sides," he said. "It will be important for both teams to adapt to that really quickly. What it means is that there will be a lot of errors, apart from just the pressure under normal conditions. There will be additional errors because of the conditions. There will be sides that can minimise those and, when you get the opportunity, capitalise on the errors of the opposition."

Urging maximum support from both teams' fans - the match is a sell-out and Channel 10's telecast will be screen live throughout South Australia - Craig described the showdown as 'a great game for our State' and for the two clubs.

"I know it's our home game this time and it will be reversed next time we play, and it's important we get as many people here as we can because it's a great game to see live, it really is, because it's great to get the atmosphere which you don't get on television," he said.