World Rugby is set to introduce some new rules and changes in the hope of increasing the speed and overall entertainment of the game.

Some of these measures - 20 minute timeouts for red cards and reduced TMO decisions - have been implemented in Super Rugby.

NZ Rugby's high performance referee manager Chris Pollock says there's been an increased appetite for rugby following last year's World Cup.

"We've got a law book that's very complex, we also have a law book that's been around for a long time- and our game has evolved." 

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