American transgender triathlete Chris Mosier stars in the latest film for the Nike Unlimited campaign, Unlimited Courage, which celebrates his life as he becomes the first trans athlete to join a US men's national team.

Mosier started competing in 2009, and commented 'Being the first trans man on a US men's national team was a dream come true for me. I always wanted my name on a jersey. To represent our country at the highest level, in my sport, is just outstanding. It's just such an amazing opportunity - and an amazing opportunity for other people to see themselves reflected in someone succeeding in sports as a trans man'.