By Josh Sanchez

It has been a few days since UFC welterweight champion Tyron Woodley called out Nate Diaz, saying the lightweight was afraid to fight him. 

Woodley claimed to have already signed a contract to fight Diaz at UFC 219 on Dec. 30 but that he was waiting on the Stockton native to do the same. 

If you were hoping to ever see the fight take place, however, it’s looking more and more doubtful by the day. 

According to Diaz’s boxing coach, Richard Perez, the fight is unlikely to happen because the UFC isn’t willing to pay Diaz what he deserves. 

"I don't think [the fight will happen]," Perez told Submission Radio. "The UFC doesn't want to give Nathan the money, you know. Because what Woodley is trying to do is get his name up there. He wants to fight the best, so he wants to fight Nathan, but the UFC doesn't want to pay Nathan so why fight him? He can fight (Conor) McGregor."

How much is Diaz looking for in a potential return fight?

"[He's worth] $15 million easy," said Perez, who previously claimed Diaz would deserve $20-25 million for a trilogy fight with McGregor.

Talks surrounding the potential Woodley-Diaz fight centered around UFC 219 at T-Mobile in Las Vegas. Perhaps the clearest sign that the fight will not going down in late December is the UFC’s announcement that Cris Cyborg will defend her featherweight title against former bantamweight champion Holly Holm in the main event.