St Kilda captain Nick Riewoldt is unlikely to have much time off to rest his troublesome knee before the Saints' AFL preliminary final.

Riewoldt said the Saints planned to train hard this week and next to minimise the risk of them easing off before they play the winner of Friday night's semi-final between the Western Bulldogs and Brisbane Lions the following weekend.

Riewoldt has suffered his share of knee scares in recent weeks, the latest when he landed heavily on his right knee last Sunday against Collingwood, before his five goals took the Saints to victory.

But the star forward was confident his knee would be fine for the preliminary final, and said he and his teammates were unlikely to have a quieter training week.

"I don't think so, I think it's important to keep that continuity and keep your body ticking over as much as possible," he said.

"You look at the mid-season break and how teams come out of that.

"There is sometimes a danger of easing off a little bit, so I'd imagine we'll train really hard this week and just make sure we're going in with the best preparation possible."

St Kilda reviewed their qualifying-final win on Tuesday, and were mindful of looking for areas where they could improve entering the sudden-death stage of the season.

Riewoldt said while the Saints would keep the foot to the floor, his knee would benefit from not playing a game this weekend.

"The knee's good," he said.

"It's pulled up the same it has all year - it's a little bit sore, but we'll manage it really well this week.

"A couple of days and I'll be fine, running around.

"It's no problem with having an extra week, that's going to help as well."

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