I'm a fan of GSP.
That said, I think Diaz does have a very good chance of taking this fight.
Diaz has probably the best stamina in his weight division, better JiuJitsu skills than GSP and a much better boxing technique. While GSP is an overall better fighter, due to his ability to integrate all skill sets in a more effective fashion, I think if Diaz sticks to a solid game plan and brings it to GSP with calculated strikes and solid ground game, he could submit GSP.
This will, at the very least, be an exciting fight.
If I had to bet, I'd say it goes to GSP by way of decision. On the other hand, I also see a potential upset with GSP losing by way of triangle.
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