PORT Adelaide forward Sam Powell-Pepper faces Match Review scrutiny for a high bump that left Adelaide's Mark Keane concussed in a match simulation fixture.

Powell-Pepper collected Keane's head with a hip-and-shoulder bump in the first quarter of the practice session at Alberton Oval on Friday evening.

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Keane had possession when caught in a Willie Rioli tackle that swung the Crow as Powell-Pepper charged in.

Powell-Pepper's right shoulder struck Keane on the right side of his head when he decided to bump, not tackle.

Keane was felled to the ground as Crows staff rushed to his aid, with the Irish-born backman soon helped from the field by two medicos.

Although Port will face Fremantle in an AAMI Community Series match next Friday, any suspension to Powell-Pepper – who was recently added to the Power's leadership group – would be served in the premiership season.

Port's premiership campaign opens with a home match against West Coast on March 17.

"We know the way 'Pep' plays, he's hard and tough, but I can't comment on the actual contest," Port assistant coach Chad Cornes said.

The incident is also another blow to Adelaide's depleted stocks of tall defenders, with Keane placed under AFL concussion protocols for the next 12 days.

There was some suggestion of Keane suffering a broken jaw but Adelaide assistant coach Scott Burns was awaiting information post-game.

"Honestly, I haven't seen him or checked with the doctors so I can't really answer that," Burns said.

Keane had been earmarked to fill a void left by sidelined big backmen Nick Murray (knee reconstruction) and Jordon Butts (foot).

Murray won't be fit until mid-season while fullback Butts, who suffered a foot injury last July which ended his 2023 season, suffered a hamstring injury three weeks ago.

The off-season departure of versatile Tom Doedee to Brisbane has also thinned Adelaide's taller options in defence.