GEELONG superstar Gary Ablett and speedster David Wojcinski have been ruled out of Saturday night's clash against Richmond at Telstra Dome.

The club's medical staff confirmed the duo would not play this weekend, making the decision following the Cats' training session on Wednesday.

Ablett, one of this year's Brownlow Medal favourites, has missed the past two matches with an ankle injury, sustained in Geelong's round 15-win over Fremantle at Skilled Stadium.

Wojcinski has also missed the past two matches, but with an achilles injury.

But defender Darren Milburn (virus) is set to return against the Tigers, with midfielder Cameron Ling (cheekbone) also in the mix, subject to the results of a fitness test.

Half-forward Paul Chapman (hamstring) will be sidelined for the next two to three weeks after leaving the ground in the first half of last Friday night's win over Hawthorn.