Most of these stem from discipline.

I think overcoming failure. Some of my biggest failure's have been from getting beaten in sports. It has taught me alot, but in the end - we need to overcome failure in our lives - and losing in sports will teach us early how to deal with our issues/failures first hand.

I think it's something sort of in between teamwork and sportsmanship (pretty sexist, btw).

The skill I prize most that comes from sports is being a good teammate. Can you earnestly celebrate and support people who's personal achievements may be coming at the expense of your own?

Other : brotherhood/sisterhood. Really tight bonds.

When you've sweated and bled next to someone, with them and for them, just to win a game/tournament. It creates the kind of loyalty very very similar to a family bond.

Teamwork I think

I'm late but I would pick;

Team Work.

There's a passage in the Daily Stoic that stuck with me in describing how stoics stayed, well, stoic. I forget the exact quote, but the idea was that stoics were always striving to strike a balance between being the scholar, and being the soldier. Which simply means, they understood the importance of working and improving both their intelligence (scholar) and their physical capacity (soldier), not one or the other. For me sports offers this opportunity to be both the scholar and the soldier or how I like to see it, the nerd and the athlete. As long as one has an open mind, is striving to constantly learn, and is curious, sports create an amazing environment in which a person can learn the beauties of life and learn about how their body and mind functions under certain stressors and circumstances.

So to answer your question, sports can be an all encompassing activity that can teach most of what you need to know about life. But often, we only see the physical side of sports and waste the potential that is there to use it to enhance our intelligence (think jocks, super athletic but not the brightest). Thus, the most important lesson kids and adults alike can learn from sports is to strive to be nerdy AND athletic! And stay curious!

Most of these are equally important. Tough to choose one. I would like to answer it on my personal grounds. I think 'overcoming failure' is what I've learnt and used most number of times in other fields with ease.

In sports, there are hurdles to get over, much like in life. Sometimes things can surprise you or catch you off guard. They say life is not about what happens to you, but how you deal with it. And I always remember this.

it also helps children release energy and combat their sedentary lifestyles. For hyperactive kids, it's a fantastic option, significantly benefiting their mental health.