Nick Diaz’s brother, Nate Diaz, and his biggest rival, Georges St. Pierre, give their latest thoughts on Nick now that the dust has settled in these pair of interviews with MMA Fighting’s Ariel Helwani and Heavy.com’s Dave Farra. Nate believes that Nick really is going to retire now that he’s earned enough money not to worry about it anymore. That’s certainly not what GSP wants to hear though. He thinks MMA needs a guy like Nick Diaz and still badly wants to fight him. Interestingly, GSP also noted that he doesn’t believe marijuana is a performance-enhancing drug and thinks Nick probably needs it to handle his anxiety issues, especially when he has to make public appearances.