Winnie and boxers. Its an excellent drug for them. Winstrol help produce lean muscle, and is typically used to enhance muscle for fast twitch power movements. Think sprinting, track and field, weightlifting, and think also boxing, MMA, etc. And its not a drug which causes you to retain too much water, so you get learn hard muscle, speed and strength, without the bloat (important for sports that have weight divisions). So, this is why its a great drug for boxers. many guys now combine it with test - thats how you get the physique and power of a Tyson, Hollyfield, etc at their prime.
As for it harming joints, I could give you a longer explantion about this belief, but if you do a little research you can find lots of info on that topic.
