George St. Pierre defeats Nick Diaz via psychological submission in training. Who says GSP doesnt finish fights? I dont want to hear all this shit about Diaz's anxiety issues all of the sudden, thats excuses. It was never mentioned before this, ever, in his whole fighting career. Whatever reason he has for not showing up is on him, he knew his contractual obligations.
If he really has a mental issue that requires attention than he should get the professional help he needs and the UFC should show some leniency, but Diaz losing the title fight is still of his own doing.