Diaz's five-year suspension is harsh but not surprising

After watching mixed martial arts for many years, I understand why fans follow certain fighters. For instance, former Strikeforce champion Nick Diaz has a large fan following. Diaz is known for his trash talking, anti-authority attitude and willingness to scrap his opponents. He also smokes marijuana.

Whatever the reason, Diaz fans rally around their hero through thick and thin. Recently, the Nevada Athletic Commission recently suspended Diaz for failing his UFC 183 post-fight drug test where a sample tested positive for marijuana. He passed two of his three drug tests — the two tests he passe...