While the AFL’s new slide rule has divided opinion, North Melbourne’s Jack Ziebell has warned players must adjust quickly, or face the consequences.

The vice-captain has a reputation for his fanatical attack on the ball and acknowledged the difficulty of having to change his ways.

"Players have their habits of diving in at the ball and getting in lower and harder," the midfielder told 1116 SEN’s Kevin Bartlett on Tuesday.

"It's going to take a while for the players to realise they can't do that anymore and also try to coach different tactics on how to win the footy."

Under the new interpretation, a free kick will be awarded against a player who makes forceful contact below the knees of an opponent.

"It's probably going to take a while for players to get their heads right around it,” Ziebell added.

"Also with the umpiring, there's a bit of a grey area in what's legal and illegal. It'll take a bit of time to work that out but I don't see an issue in it in the future."

Brad Scott says the coaches have also tried to help the players with the change.

"We've had to make slight adjustments in the way they attack the ball,” coach Brad Scott said.

"His (Ziebell’s) instinctive way of desperately lunging in for the ball has had to change and we've had to work with him a little bit on that. Players generally adapt very well and we need some time to judge rather than after just one week.”

Scott praised the umpires for their early interpretations of the new law during the NAB Cup.

"It's a very difficult rule to judge at this early stage. All I can say is the free kicks that were paid for sliding were adjudicated exactly as the AFL and the umpires department explained it to us. That's all anyone can ask for.

"There are going to be contentious rules and rules that are designed for player welfare and safety. All we ask as coaches is that it's adjudicated the way it's explained to us and the umpires did a great job of doing exactly as they said they would.”