Nick Diaz failed to show up to his Brazilian jiu-jitsu superfight against Braulio Estima, and as of Saturday night, his manager and trainer couldn't answer why.

"I don't know," Cesar Gracie told MMAFighting.com. "I know he was mad when he was told Braulio would not make weight last night. No one has seen him today. Braulio ended up making weight this morning."

There were rumors circulating that Estima failed to make the 180-pound weight limit, but according to sources at the World Jiu-Jitsu Expo, the Brazilian officially made weight Saturday morning.

Following the Diaz no-show, Estima openly challenged the UFC fighter to an MMA fight. BJJ star Robert Drysdale offered to replace Diaz but Estima had no interest in fighting a replacement.

"I came to fight Nick Diaz," he said.