Brisbane skipper Jonathan Brown fears 300-game players could become extinct in the "fast and furious" modern era unless the AFL caps interchanges.

On the same day the AFL released figures which showed a link between the rise in injuries and interchanges, Brown warned something needed to be done to protect the longevity of players.

The Lions star, who has struggled himself with an abdominal problem in recent weeks, supported what already appears to be the AFL's view in limiting interchanges.

Brown said the game was getting harder each year, particularly since 2008 when high rotations came into vogue across the league.

"The games are a lot faster and more intense," he said on Wednesday.

"The unlimited interchanges increase the pace of the game and guys are running at higher intensity for longer so guys are pulling up sorer and that's something the AFL has to look at," he said.

"When I look over my career I think I've noticed in the last three years the game's gone up in pace when I'm in the prime of my career and it should feel as though it's slowing down but it's getting quicker and quicker."

Asked whether the 300-game milestone may become a thing of the past for leading players, Brown conceded he was worried.

"It's interesting because with the balance of medical technology you'd hope would keep players going longer but the pace of the game, I'm not sure players can withstand it," he said.

"It's an exciting spectacle that's for sure, but it's one for the authorities.

"Personally, I think to limit the rotations would be to the long-term interests of the players and also in the best interests of the players as well, I think the game would be a bit easier to follow as well."

Brown reported both he and fellow power forward Brendan Fevola (foot), poised on 599 career goals, were feeling better and ready to face Geelong at the Gabba on Saturday night.

Injury-riddled Brisbane have lost their last three matches after a 4-0 start but the captain rejected the notion they would have the "black arm-band on" against the Cats.

"This is our tough period of the season and we have to hit it full-on," he said.

"Some guys might be carrying injuries and some guys might be sore but the rest of the competition is as well so we have to put that behind us and move forward, so you will see a determined approach from our side this week.

"There's no better team to test yourself against than Geelong, if you don't put pressure on them they run rings around you."

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