Heavy legs, gasping for air - Wales stars reveal what it's really like playing at altitude as Pivac's men take on South Africa

Whenever a team tours South Africa, there’s always talk about how they will cope with playing at altitude.

That’s very much an issue for Wayne Pivac's side over the coming weeks, as they will play their first two Tests against the Springboks in Pretoria and Bloemfontein, each more than 4,000 feet above sea level.

So just what is it like playing in the thin air up on the High Veldt? Who better to ask than a couple of former Welsh internationals who have done just that.