Photos: Anthony Joshua, Carlos Takam - Grind Hard at Workouts

CARDIFF, WALES – Unified Heavyweight World Champion Anthony Joshua and IBF mandatory challenger Carlos Takam worked out in front of approximately 1,400 fans on Wednesday at St. David’s Hall in Cardiff, just three days before they square off this Saturday live on SHOWTIME.

The near-capacity crowd at the National Concert Hall of Wales serves as a prelude to the record-breaking audience expected at Principality Stadium on Saturday where more than 75,000 fans will set boxing’s all-time indoor attendance record at the retractable roof facility.

The SHOWTIME CHAMPIONSHIP BOXING telecast begins live at 5 p.m. ET/2 p.m. PT from ringside in Cardiff as Joshua (19-0, 19 KOs) returns for the first time since unifying the heavyweight division.  The undefeated British sensation picked up the WBA belt to go along with his IBF crown on April 29 in a leading Fight of the Year thriller with Wladimir Klitschko.

“We’re going to have a war.  We’re going to wear our hearts on our sleeves,” Joshua said.  “This is what fighting’s about.  With me, it ain’t about all this other stuff that goes on outside the ring.  When people come to watch me box, they know they’re going to have a good time.  They know they’re going to see knockouts.”

Takam (35-3-1, 27 KOs), a 2004 Olympian from Cameroon, packs a lengthy resume as he looks to shock the world and become heavyweight champion.

“He's a world champion, he's earned his belt,” said the 36-year-old Takam.  “But I'm coming here to take it.”

Joshua vs. Takam is the first of two consecutive heavyweight world bouts on SHOWTIME.  Next Saturday, Nov. 4, WBC Heavyweight World Champion Deontay Wilder will defend his title in a rematch with Bermane Stiverne, the only opponent to last the distance with the American champion in 38 professional bouts.