"A joke" - Ugo Monye slammed for 'unacceptable' comments

Speaking on BT Sport, Monye said: "I think we're good at recognising concussion. I think it's important to state that mistakes will be made, absolutely. You've got people on the pitch and people sat in the stands who are watching it on replay.

"In terms of returning too quickly, that's impossible. There is a clear framework and guideline which is used. You can't even start until you're cleared of a headache and then it's a graduated return to play."

Progressive Rugby, who are led by former Canadian international Jamie Cudmore, ex-England back-rower James Haskell, former Wales flanker Alix Popham and senior medical figures from the game, have hit back at these comments. 

The group said on Twitter: "Ugo Monye stating as fact that it’s 'impossible' to return to play from a brain injury too quickly in the elite game, just days after an enquiry conceded Tomas Francis was allowed to return to the pitch... during England v Wales. Sorry Ugo, that’s unacceptable."

They added: "We should add a thank you to Ben Kay who made some excellent points and, most importantly, made it very clear that head guards do not provide protection against concussion. This is a common misconception that needs reinforcing."

Carter’s personal favourite moment from his career comes from New Zealand’s 2015 Rugby World Cup final triumph against Australia at Twickenham however, as he slotted a drop goal from 40 metres out to stem the tide of a Wallabies comeback.

“All such special memories but hard to go past the RWC final drop goal,” Carter tweeted, in response to a Rugby World Cup post asking fans what their favourite moment from the All Blacks fly-half was.

He added: "Twickenham, the home of rugby, was certainly bouncing that night.

Carter said: "Under lights, especially, the place comes alive."

The 50,000-capacity stadium is the largest in New Zealand and is situated near Auckland’s central business district below the imposing backdrop of Mount Eden.

It’s an arena based bang in the centre of the Welsh capital and the retractable roof, when used, seals in the fervour.

Carter said: I'm often asked which is my favourite stadium at which to play. I always say the Millennium. I've got a lot of great memories of playing there.

"It's an amazing place with an awesome atmosphere. The people of Cardiff and Wales are like the Kiwis back home. They are so passionate about their rugby.

"Also, as a kicker, it's quite handy having a roof on it too. That takes away the wind and rain which you can have a bit of in Cardiff. That's an added bonus."