Where and when: AAMI Stadium, Saturday, May 1, 2.40pm
Head to head: Port Adelaide 14 wins, Adelaide 13 wins
Last time: Adelaide 19.18 (132) d Port Adelaide 9.8 (62), round 17, 2009 at AAMI Stadium

MISSING IN ACTION
Adelaide
Nathan Bock (hamstring) - test
Patrick Dangerfield (wrist) - 4 weeks
Ricky Henderson (hamstring) - 2-3 weeks
Trent Hentschel (knee) - 4-6 weeks
Jarrhan Jacky (hamstring) - 1-2 weeks
David Mackay (groin) - 1-2 weeks
Brodie Martin (knee) - indefinite
Brad Moran (knee) - indefinite
Andy Otten (knee) - season
James Sellar (hamstring) - 1-2 weeks
Sam Shaw (shin) - 2-3 weeks
Rory Sloane (ankle) - 3 weeks
Brad Symes (knee) - indefinite

Port Adelaide
John Butcher (back) - indefinite
Cameron Cloke (ankle) - test
Tom Logan (concussion) - test
Daniel Motlop (hamstring) - test
Marlon Motlop (fractured foot) - indefinite
Jasper Pittard (hamstring) - 3-4 weeks
Matthew Westhoff (groin) - 2 weeks

FORM
Adelaide: LLLLL
Port Adelaide: WWLLW

SUMMARY
The bookies have installed Port Adelaide as a warm favourite against Adelaide at AAMI Stadium on Saturday afternoon, but players in both camps know the chances of winning a Showdown are rarely better than 50-50.

The struggling Crows will be looking to square the ledger at 14 wins apiece this weekend, but face a tough challenge up against the St Kilda-slaying Power.

Port Adelaide announced itself to the competition with a gutsy 10-point win over last year’s grand finalists last weekend, while Adelaide edged closer to the point of no return this season with a fifth-straight defeat, this time at the hands of the Western Bulldogs.

Another loss this week would make it almost impossible for the Crows to make the eight this year and no club would get more enjoyment out of delivering the knockout blow than Port Adelaide.

PLAYER TO WATCH
Jason Porplyzia struggled in his first three games after an injury-interrupted summer, but appeared to turn the corner in round five. Porplyzia booted two goals and took a Mark of the Year contender against the Dogs last week. He will need to step up in the absence of Patrick Dangerfield.

Livewire David Rodan was instrumental in the Power’s stirring win over St Kilda last weekend, finishing with 27 disposals, seven clearances and six inside 50s. Adelaide has struggled at the stoppages this season and Rodan has the potential to cut the Crows' midfield apart.

QUESTION MARKS
Can Port Adelaide replicate the pressure that made St Kilda appear second rate? The Power have laid in excess of 80 tackles in each of their wins this season and will need more of the same this week.

Can the Crows hit their targets? Poor skill errors and turnovers in crucial areas of the ground have cost Adelaide this season and the players must improve their efficiency to win.

WHO WILL WIN AND WHY
The winless Crows will fancy their chances in a tight tussle with the Power, but haven’t showed enough to suggest they’re on the verge of turning their season around.

Port Adelaide beat St Kilda at its own game last weekend and a similar effort should be enough to get the club over the line and back into the eight on Saturday.

PREDICTION
Port Adelaide by 17 points

Follow James Bartold’s inside view of Adelaide v Port Adelaide at #aflcrowspower on Twitter.com from 2:40pm Saturday or @AFL_JamesBartold#aflcrowspower

The views in this story are those of the author and not necessarily those of the clubs or the AFL.