There's no denying it, rugby union is not a game for the faint of heart.
Whether tackling, rucking, scrumming or breaking the line, the best of the best from around the globe put their bodies on the line every time they run out.
But with injuries so prevalent - including unseemly cauliflower ears - one would imagine that a rugby player's career couldn't be too long.
Well, they would be wrong.
From the east coast of Ireland to the depths of New Zealand's South Island, here are the men of steel who have represented their countries more than anyone else.
1. Alun Wyn Jones (2006-2023) – Wales/British and Irish Lions – 170 caps
2. Sam Whitelock (2010-2023) – New Zealand – 153 caps
3. Richie McCaw (2001-2015) – New Zealand – 148 caps
4. Sergio Parisse (2002-2019) – Italy – 142 caps
5. Brian O'Driscoll (1999-2014) – Ireland/British and Irish Lions – 141 caps
6. George Gregan (1994-2007) – Australia – 139 caps
= 7. Gethin Jenkins (2002-2018) – Wales/British and Irish Lions – 134 caps
= 7. James Slipper (2010-present) – Australia – 134 caps
9. Keven Mealamu (2002-2015) – New Zealand – 132 caps
10. Ronan O'Gara (2000-2013) – Ireland/British and Irish Lions – 130 caps