Carlton have had little to celebrate this decade and coach Brett Ratten wants it kept that way if Brendan Fevola kicks 100 goals this season.

The AFL wants to prevent fans running on to the ground if and when Hawthorn's Lance Franklin (91 goals) and Fevola (84) reach that milestone this season, in the interest of player safety.

And it has an ally in Ratten, who said times had changed from the days when fans could charge on to the ground when a player reached a major milestone.

"I think the AFL is probably on the right path there. It is dangerous now to just let people come on the ground, so I think they'll just look after the players' welfare," Ratten said.

"What's the risk? You just don't know when there are a lot of people and you've just got to be careful, don't you?

"You wouldn't want any spectators to get injured, let alone any of the players when people are in a mad rush.

"They might even have security now at the Myer stocktake sale to make sure that no one gets an injury going up the stairs. It's something very similar."

Blues legend Alex Jesaulenko is the only Carlton player to have kicked a century in a season, having booted 115 in 1970.

Ratten insisted his players would not stray from their focus of trying to make the finals just to help Fevola kick his required 16 goals.

The Blues must win their remaining three games to be any chance of September action.

"If it's meant to be it'll happen. If it's meant to be for Brendan and he kicks a hundred, well, then that's fantastic," Ratten said.

"But if not we just worry about winning the four points as a group.

"If we can keep winning we might give ourselves another week to give him a chance, but at the moment it's just about what the team can do, not what he can do.

"We won't be going out of our way, running into open goals and kicking the ball at right angles (to Fevola) when the goal should be kicked."

Ratten said the Blues' improvement this season had resulted in a surge in player confidence.

That would be tested on Sunday, when they play in-form North Melbourne, who thrashed Carlton by 82 points in their last clash, in round 21 last year.

"We think our confidence is growing and we're playing fairly good football over the last month, without winning all the games," Ratten said.

"This gives us a reflection on exactly where we're at.

"We'll walk away from this game saying `We have really improved', or `We have got a lot of work to do individually and collectively'."

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