Will we ever see it? Does it have to happen? Will we be deprived if it doesn't? 
no, no, no
lol jk, Nate would win by being the better boxer and rangier. Edgar might take him down but Diaz would be comfortable on the ground, also
no one's thinking about this match up now that Edgar-Aldo is a reality
What has Diaz donr to deserve a shot at the greatest LW of all time?
JohnnyChingas - What has Diaz donr to deserve a shot at the greatest LW of all time?
He's about to beat the guy that beat the best LW of all time. That's what!
Nate via triangle in the 1st
Well for starters the greatest LW ever is bj Penn, Franky just happens to match up very well against bj. And then to ask what nate has done to earn the match??? You must be higher than I am! Nate has gone on a tear and dominated opponents everyone else has had problems with. And before this fight is even on the table nate will have either just lost a tittle fight or and more likely imo he will be the LW champ!
Get out of here with this what has he done to deserve bullshit. 
I might be wrong but I thought I heard in an interview not too long ago that they wouldn't fight because of the Gracie connection they have. Cesar trains nate, and renzo trains Frankie