NICK Riewoldt is hopeful he will be able to play in Sunday's tribute game for his late sister.

The St Kilda skipper injured his calf against the Giants on Sunday, but believes he could still be fit to face Richmond.

Riewoldt spoke to reporters as he arrived for scans late on Monday. 

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"Obviously (I) want to play every week, but this is a really significant week for obvious reasons," Riewoldt said.

"It is still only early, I'll have the scan and talk to the doctors and go from there basically.

"I think I got it pretty early. I just felt it tighten up a little bit and then came off. You can only push as hard as you can push. I'll push as hard as I can."

Sunday's twilight encounter between St Kilda and Richmond is being billed as 'Maddie's Match'.

The game is a fundraiser for the Maddie Riewoldt's Vision, which has been set up to raise funds and awareness for research into bone marrow failure syndromes.

Riewoldt's sister Madeleine passed away from a long battle with the illness in February at the age of 26.

St Kilda will release a detailed injury report with Head Physiotherapist Andrew Wallis on Tuesday.