Port Adelaide speedster Matt White will spend up to six weeks on the sidelines with a hamstring tear.

White suffered the injury in the Power’s 23-point loss to Geelong last Friday and was subbed out of the game.

Scans later revealed he had sustained between a grade two and three tear, with the club set to take a `zero risk’ approach to his recovery given his previous troubles with hamstring injuries.

“He won’t start back running for a couple of weeks just to let it heal and then we’ll just build up strength from there,” performance manager Darren Burgess told the club’s website on Wednesday.

“He’s had a bit of a history with hamstrings so we’ll be taking a particularly cautious approach with him.”

White’s injury is a significant blow to the Power’s running stocks with fellow speedster Jared Polec still at least five weeks away from resuming from a foot injury.

Port will be without Paddy Ryder (Achilles) when they take on Carlton on Saturday, but Jackson Trengove is a chance to return from an ankle injury.