Saint George has ‘seen gremlins’ in Wales training

And the juggernaut wing is now looking forward to getting back home after nine days in the searing heat of Doha.

Wales, who will face England in World Cup Pool A at Twickenham on September 26, headed to the Aspire Sports Centre last week.

The venue, which has helped top sports teams such as German football giants Bayern Munich hone their talents, has hosted strong man-style feats and other tortuous activities.

And North, who is now fit again after missing the final two months of last season with concussion, said: “It’s been pretty savage by anyone’s standards. For the boys who were here from the last World Cup and are preparing for this one it’s been a hell of a step up.

“The heat is a stimulus, which is horrendous for the bigger guys, trying to run in it is horrendous.

“It’s the hardest thing I’ve ever had to do pre-season wise. I’ve been to places no man should be in on his own - I’ve seen gremlins and different things when I’ve been running, but that is pre-season.”