Welshman Dan Lydiate revealed more about his characteristic 'chop' tackle that has been in action at the World Cup.
The flanker has earned a reputation for his staunch defence and high work rate, making him a vital cog in coach Warren Gatland's machine.
Lydiate revealed that Wales' defence coach Shaun Edwards helped him develop the tackling technique in the lead up to the 2011 Rugby World Cup, where the Welsh were grouped with the physically imposing South Africa, Samoa and Fiji.
"It came about while working with Shaun Edwards in the pool of death we had last time, with South Africa, Fiji and Samoa all being physical teams," revealed the 27-year-old on itv.com.
"It was trying to get players to the deck as soon as we could, and so that other players we had in the team like Gethin [Jenkins] and Sam [Warburton] could get over the ball.
"It developed from there and is something that has been highly effective for us. There are different types of tackles, and you are not always going to get it right.
"We vary our tackling, so in the last couple of years we started choking a few teams in the tackle and got success out of that. I pride myself on my defence, and when I do it right it is highly effective."
Lydiate added that the technique is important to get right, otherwise it is quite painful.
"I find that it hurts me less when I do it properly," said the Ospreys player.
"With the law of averages you are going to get some wrong."