Nate Diaz suffered a unanimous decision loss to Rory McDonald this past Saturday at UFC 129.
The defeat marks his second straight loss at the welterweight division. It now seems that Diaz plans to return to the lightweight division.
According to a report from MMA Mania, Diaz's trainer, Cesar Gracie, has said, "Nate Diaz didn't look too good. I'm gonna be the first one to say it. He looked lethargic out there and he's been asking me to go back to 155 for some time now.
is the champion over there and he's the student of a good friend of mine. Nathan was one of the contenders at 155 so we brought him up to 170 but it looks like we'll probably bring him back down to 155 where he belongs."
Diaz got his shot in the UFC after he triumphed in The Ultimate Fighter 5 tournament, consisting of 16 lightweights.
After winning in the fifth season finale, Diaz went on a four-fight win streak, before going on a run of 1-3—losing all three by decision.
After a loss to Gray Maynard, Diaz decided to move up to welterweight, citing issues cutting weight.
Here, he picked up two stoppage victories to start off with—one via TKO and one via submission—before suffering these back-to-back decision losses.