Sean O'Brien is a perfect cross between the untamed, disheveled manliness of old rural Ireland and the 21st century gym nut. It's fitting so that during their day filming with American photographer Zach Gold and Lucozade sport O'Brien decided to unwind by benchpressing a gas cylinder.
As you do.
The Tullow Tank threatened that he could go all day and while his teammates Conor Murray and Cian Healy laughed as he busted out the reps, you can see Murray is quietly impressed after he tested the weight of the cylinder once O'Brien had finished.
Throughout the day O'Brien and the lads were pushed to his limit to capture his speed, resistance and accuracy displaying the intensity of the training a rugby world cup player endures in the lead up to the major tournament.