Conor McGregor is gonna need a miracle to beat Nate Diaz at UFC 202 ... so says UFC lightweight champ Rafael dos Anjos.
McGregor and Diaz are set to rematch at UFC 202 in August -- and with dos Anjos having defeated Diaz in the past, we asked if he had any fight advice for Conor.
Rafael didn't give out any free pointers -- but did drop some real talk ... telling TMZ Sports straight up, "I don't see Conor winning this fight for sure."
He goes on to explain why Conor is doomed.
Of course, dos Anjos has his fight to worry about -- he's facing Eddie Alvarez at UFC Fight Night 90 in July -- but says if Conor ever wants a shot at his belt ... "He's welcome any time."
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