LONDON  – Undefeated IBF Heavyweight World Champion Anthony Joshua (16-0, 16 KOs) and fellow unbeaten American challenger Dominic Breazeale (17-0, 15 KOs), participated in the final press conference on Thursday at Sky Sports Studios in London, just two days before their showdown this Saturday. Photos by Laurence Lustig.

The British sensation and 2012 Olympic Games Gold Medalist, Joshua will make the first defense of his title against Breazeale, a 2012 U.S. Olympian from Upland, Calif., this Saturday, June 25 on SHOWTIME BOXING INTERNATIONAL® from a sold-out The O2 in London, live on SHOWTIME® on at 5:15 p.m. ET/2:15 p.m. PT.

Fellow heavyweight world champion Deontay Wilder, the undefeated WBC titleholder, will join the SHOWTIME announce team as an in-studio guest analyst for coverage of Joshua-Breazeale from New York.

A few hours later Saturday, in primetime on CBS (9 p.m. ET/6 p.m. PT), Keith “One Time” Thurman will defend his WBA Welterweight World Title against former champ Shawn “Showtime” Porter in a welterweight blockbuster that headlines SHOWTIME CHAMPIONSHIP BOXING on CBS, presented by Premier Boxing Champions.

Below is what the fighters had to say at the final press conference, followed by some recent fight week quotes.  (Courtesy Sky Sports and Matchroom Sport)

DOMINIC BREAZEALE:

"I respect you as a fighter, but I'm going to beat you. I've got to beat the best of the best."

"I can't wait, it's been an opportunity I've been waiting eight years for this. It's an opportunity of a lifetime and I'm ready for this.

"Expect fireworks. We'll be going round for round, punch for punch and I expect to knock out Joshua."

“I got a big right hand, I have a big left hook.  I stand 6-foot-7, 255 pounds.  I’m unorthodox – I’m a guy that can fight on the inside, I’m a guy that can take a punch, I’m a guy that can give a punch.  So if any one of those given things show up on Saturday night I’m getting a knockout, for sure.