ST KILDA defender Jimmy Webster is set to come under scrutiny from the Match Review Officer (MRO) for a high bump on Jy Simpkin that ruled the North Melbourne skipper out of Sunday's AAMI Community Series match.

Webster leapt off the ground and collected Simpkin's head with a hip-and-shoulder during the first quarter of the clash at RSEA Park.

Simpkin kicked the ball into North's forward line a split-second before Webster cannoned into him.

Kangaroos players rushed to remonstrate with Webster and a melee spilled over the boundary line into the fence while Simpkin lay on the ground.

The 25-year-old, who was concussed twice last season, was attended to by medical staff before eventually walking off the field and being ruled out for the rest of the match.

St Kilda assistant coach Corey Enright said Webster's bump was out of character.

"He's obviously shown some remorse there and I guess our thoughts are with the North Melbourne player in Simpkin," Enright said.

"Hopefully he's going to be OK and you never want to see anyone go down. We'll deal with whatever comes out of it from there.

"(Webster) is a great person and he's had a long time in the game.

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"As we know with football, it's one step here or one step there.

"It's a really fast game, faster than ever. These things happen really quickly.

"We can only take Jimmy for the person that he is and he's been a great character and great servant for our club."

The incident comes less than a week after Port Adelaide forward Sam Powell-Pepper was handed a four-match ban his high bump on Adelaide's Mark Keane.

The Powell-Pepper incident was graded careless, severe impact and high contact by the MRO and sent straight to the Tribunal, which returned a finding of four games.

Simpkin has entered concussion protocols, but he could still play in round one under the minimum 12-day break. North Melbourne face GWS on March 16.

"I just saw him then and he seemed fine. He watched the game from the bench in the second half," Kangaroos assistant coach Xavier Clarke said post-match.

"He'll enter concussion protocols from here and we'll let our doctors and our medical team take care of him.

"They do a really good job with that and we obviously know what he has to go through hopefully to be available for round one."