In professional sports, there is always a winner and a loser. And NBA trades are no different… As a matter of fact, the Kyrie Irving for Isaiah Thomas deal was a perfect reminder of this. This trade, like others we’ve seen in the past, produced a clear winner, and a VERY clear loser. A good trade can immediately improve the fortune of an NBA franchise — but on the flipside — it can crush the future of the other franchise. Without further delay, here are some of the worst trades in NBA history. We guarantee most NBA fans have forgotten about at least a few of these crazy deals! Click Next To Get Started!