We've had the first weekend of Super Rugby and what are we all talking about? The mouthguards.

The new smart mouthguards are intended to make sure players go off when they have a serious head injury - but they're also slowing the game down.

Rugby Players Association boss Rob Nichol spoke to Jason Pine on Sportstalk about what the players make of it all, and why some of them are probably going to stop wearing them.

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