Stefan Martin has vowed to mark his 100th AFL game with a return to the aggression that marked his rise to one of the competition’s premier ruckmen.

Martin described his performance against the Western Bulldogs last week as “passive” and promised to bounce back in front of a home Gabba crowd against the Sydney Swans on Sunday.

"I was very passive, I was ball-watching a lot, not aggressive, which are the things I've modelled my game on the last few years and I didn't do any of it on the weekend,” said Martin.

"(I've got) Another chance this week to do those things."

Playing the Sydney Swans at the Gabba on Sunday marks a milestone for Martin that has been nine years in the waiting.

Lions coach Justin Leppitsch believes the 29-year-old – who was a joint best and fairest winner last year - is just entering his prime.

"I reckon he's got another 100 in him," Leppitsch said.

"Stef's got the sort of body that can go the distance, I think. He looks after himself and is highly professional.

"Stef can get to 35 (years old) easy and knock over (another) 100 pretty quick."

As has been the case all season, Leppitsch said the key to being competitive against the Swans would be the Lions' contested ball numbers.

They were minus 51 against the Bulldogs last week, a stat Leppitsch was generous in describing as "poor".

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