This video clip is for those who are concerned about getting adequate protein in your plant-based diet:
https://www.facebook.com/livekindlyco/videos/566264207055491/
Here are a few famous vegetarian sportspeople (from the older generation):
And 13 vegan athletes from this generation: http://metro.co.uk/2015/08/26/13-vegan-athletes-smashing-it-on-a-meat-free-diet-5349835/