I do not base my arguments of doping on appearance. Nor are steroids the only doping you can take. 

Look up the Aicar + GW1516 combo. It's lethal, both litterally and figuratively.

That what I thoght another pointless reply you make a lot of big claims but can't even give me one prime canditate for a big time doper in the NBA.  I think you need to stick with watching soccer.

If i were an evil 80 year old billionair i would sell it for 1 buck to my son and make him fire all the players and sign up midgets just to say F u to the NBA.. The NBA was of course right to do this but don't count out a senile 80 year old billionair.. Should have banned him 180 years and his entire family just in case..

The owner of a franchise, though. Just like the legal owner of a McDonald's restaurant could still be "fired" by McDonald's, since he licenses the right to use the McDonald's name even if the land and facilities belong to him. Sterling and other franchise owners "license" the right to participate in the NBA (otherwise owning a team is worth only a fraction of that), pursuant to NBA rules and conditions, including probably a morality clause (a contractual bit saying "don't say/do stuff that will make us look bad, even in your private life,"), and now that he is in breach of that, he loses his right to participate in the NBA.

I think what they legally can't force him to do is sell the team, but noname's the lawyer here, not me.

The part i also wonder is that they're fining him and lifetime banning him. Seems like the latter makes the former hard to enforce, unless he's under contract to abide by such fines.

The other guy is right.  In every major sports there are steroids.   I bet after all of Derrick Rose's injuries he is using steroids as we speak to recover.

There's probably a lot of contractual limitations on who you can and can't sell the team to. Otherwise i'd sell it to some random guy in China or something.

Sure didn't look like he was taking steriods during his first recovery or he wouldn't have been injured that soon again and the recovery wouldn't have took that long.

If by latter you mean the lifetime ban, I'd imagine you just use the "we reserve the right to refuse service" idea. A bit pedantic, but workable (and it worked in baseball). As for enforcing the fine, it's probably a breach of contract claim or some such, I dunno.

I didn't know steroids prevented injuries

Cyclists often take cortisones when they're injured and they often use tramadol in the final of bike races to reduce pain (and thus ride harder). It's incredibly dangerous to use a drug like tramadol in a peloton of 200 cyclists driving at 50km/h. Tramadol slows your reaction time and makes it hard to concentrate. And it's not even illegal as of now! It has been linked with many crashes in the peloton.

Probably a lot of cortisone abusers in American sports. Some of those are very physical and injury prone.