ADELAIDE milestone man Eddie Betts is expecting Port Adelaide to be desperate to spoil the party for his 250th game as the Power approach the Showdown as a "mini grand final".

The Crows go in as overwhelming favourites for Saturday night's encounter at Adelaide Oval as they build towards the finals.

Meanwhile, the 11th-placed Power have nothing but bragging rights to play for after disappointing losses to the Sydney Swans and Melbourne in the past fortnight.

Betts said the Power would take the same mentality he had when he was at Carlton when they faced their arch-rivals Collingwood.

"We knew we weren't going to make finals and Collingwood were, so we thought this is going to be our mini grand final, we could muck up their season," Betts said.

"I guess Port might have that same mindset that this might be their mini grand final.

"They might be thinking they can muck up our chances, but we've just got to play our way and play the way we want to play.

"We've got to match their intensity, because they're going to come out firing."

The Crows are chasing a top-two spot and the all-important home ground advantage in the finals in their last two games against the Power and West Coast.

Betts will go down as one of the greatest recruits in Crows' history.

The 29-year-old has been an overwhelming success in South Australia since moving to the club on a four-year deal at the end of the 2013 season.

Betts has kicked 174 goals in his 65 games with the Crows, including 60 this season to be fourth in the Coleman Medal race.

"Personally I didn't think I'd play more than 50 games," Betts said.

"Everyone has a story to tell about how they got to the AFL, but I'm very proud of where I've come from.

"To make 250 games is amazing."

Betts was selected by Carlton with the third pick of the 2004 pre-season draft, playing 184 games for the Blues before he joined the Crows.

"When I made the decision to leave Carlton, I went home and cried for three hours," Betts said.

"I sat on the bed and I said to myself, 'am I making the right choice'?

"We just had to move on and get over here.

"I thought it would take a while for the crowd to embrace me, (but) since day one (the fans) embraced me, the footy club embraced me, the players (embraced me)."

Crows ruckman Sam Jacobs will have to pass a fitness test to see if he's recovered from an ankle injury that has forced him to miss the past two games.

"He's looking OK," Betts said.

"I guess the big test is he's got to get through training this afternoon.

"He's been doing some running, some kicking, some change of direction and he's looking good.

"I told him it's my 250th this week and he said he didn't want to miss it, so we'll see how we go."