Rugby union, like no other sports, is filled with some of the bravest and hard-working players on the planet.
Some of these world-class stars, however, have had serious medical conditions, yet they have stepped foot on the pitch and have delivered a performance like none other.
Here are 5 rugby stars who have played with some of the most serious medical conditions.
#1. Lewis Moody (England) – Colitis
Former England captain Moody was diagnosed with an inflammatory bowel disease called ulcerative colitis in 2005, but kept his condition secret while continuing to play top-level rugby.
Now retired, he wants to raise awareness of the Crohn’s and Colitis UK charity which helps around 260,000 people in the UK with this type of disease.