Wilder is expected to defend his WBC belt against Luis Ortiz in a rematch before a second fight with Fury, and Ruiz Jr is determined to add the last remaining major world title.
“Of course, I’m just missing one belt,” said Ruiz Jr. “One belt to be the undisputed heavyweight champion of the world and that’s the goal, but I don’t want to look past Anthony Joshua.
“I want to defeat him one more time, because there’s a lot of critics saying that it’s a lucky shot, that I’m going to lose. I’m using all the negative energy to positive energy, so we’re going to win.”
Ruiz Jr has already riled Fury on social media, giving a mocking assessment of the Brit’s hard-fought points win over Otto Wallin.