Port Adelaide’s Showdown defeat to Adelaide was compounded with injuries to key defenders Jackson Trengove and Alipate Carlile.

After being knocked off their perch at the top of the ladder by their cross-town rivals on Sunday, Port Adelaide’s 23-point defeat to Adelaide was further soured by injuries to key defenders Jackson Trengove and Alipate Carlile.

A goalless third term coupled with a five-goal last quarter from Adelaide saw the Power fall to just their third defeat of the season and surrender top spot to Hawthorn, as the Crows triumphed 14.15 (99) to 10.16 (76).

Port gave up a 10-point lead at half-time when Trengove was subbed out after injuring his ankle in the second term, which Port Adelaide coach Ken Hinkley suggested was a turning point in proceedings.

“It certainly disrupted us because he (Trengove) chops out in the ruck for us and allows Hoff (Justin Westhoff) to stay forward,” he said.

“We don’t have any extra talls we can go on and call on so it was a significant moment in the game that certainly hurt us.”

Trengove is the fifth Power player to fall victim to an ankle injury this season and is likely to miss one to two weeks along with fellow backman Carlile who is suspected to have pulled a hamstring.

With a lack of tall timber in defensive 50, Hinkley acknowledged the Power will have a selection headache ahead of next Saturday’s clash with Essendon.

“That’s a pretty big loss considering their two tall backs,” he said.

“As I’ve said before, hopefully we are not personnel based, but rather team based and structured around how the team plays.

“Yes, it will cause us some restructuring issues, but we will be okay with that.”

While Port suffered injuries during the game, Adelaide lost Sam Kerridge (foot) and Rory Laird (quad) on the eve of Sunday’s Showdown while they were also at risk of losing star defender Daniel Talia just prior to the first bounce.

Adelaide coach Brenton Sanderson said Talia injured his back during warm up and was subsequently on a physio table 30 minutes before the match started.

“He had a really nasty, tight back spasm and we were running on the spot a little with only a couple of minutes before the game started whether we would activate (Mitch) Grigg as our last emergency,” he said.

“But to Talia’s credit he went out there and played a really important game.”

Talia is expected to be available for next Saturday’s meeting with GWS, but Kerridge, who is suffering from a hot spot in his foot, and Laird are expected to miss.