The ultra-entertaining World Boxing Super Series (WBSS) semifinals-round concludes this Saturday, when undefeated world champions Murat "Iron" Gassiev (25-0, 18 KOs) and Yunier "The KO Doctor" Dorticos (21-0, 20 KOs) throw-down in a unification fight, at Bolshov Ice Dome in Adler, Russia.

Gassiev weighed in at 198.7-pounds, while Dorticos was 199.5-pounds.

The Gassiev-Dorticos winner will advance this May to the WBSS championship final in Saudi Arabia, to fight WBO/WBC world champion Oleksandr "The Cat" Usyk (14-0, 11 KOs), winner of this past Saturday's WBSS semifinals match against Mairis Briedis (23-1, 18 KOs). The WBSS' Muhammad Ali Trophy winner will become the first world cruiserweight champion to hold all four major championship belts at the same time.

gassiev-dorticos-weights (1)_1

The 23-year-old Gassiev captured his International Boxing Federation (IBF) crown a year ago with a 12-round split decision victory over three-time world cruiserweight champion Denis Lebedev (29-1). In the WBSS quarterfinals, Gassiev knocked out two-time world cruiserweight champion Krsysztof Wlodarczysk (53-3-1) in the third round of his initial world title defense. 

gassiev-dorticos-weights (5)

A Cuban defector who now lives in Miami, Florida, Dorticos stopped interim World Boxing Association (WBA) cruiserweight champion Youri Kalenga (22-2) in the 10th round of their 2016 fight, and he was later elevated to "regular" WBA world champion. Dorticos put Dmitry Kudryashov (21-1) to sleep in the second round of their WBSS quarterfinals match.

gassiev-dorticos-weights (4)_1

"I'm ready to show Gassiev what a champion looks like and give him a challenge he's never faced before. I want to take his belt. In other words; Gassiev is my next victim. I am preparing my body and soul for the most important fight in my career. Because the only thing I'm going to accept is the victory.

gassiev-dorticos-weights (2)_1

"I have worked hard to be able to be a part of this tournament, I have worked hard to be able to prove that I am the best cruiserweight in the world. I believe I am the best in the world, and I can't wait to fight again and show the fans all over the world once again what 'The KO Doctor' is about."

gassiev-dorticos-weights (3)_1