Joseph, popularly known as 'Mchumiatumbo', succumbed to a second round Technical Knockout loss to a Russian opponent, Arslan Yallyev, in an international non-title fight, which had been scheduled for eight rounds.
The fight, which took place in Krymsk, Russia on Sunday, was one of five non-title bouts that were slated to take place in the day.
"I have lost the fight, it is part of the game. I will next time prepare well for my fight, my opponent was not that good. He simply had good timing," Mchumiatumbo pointed out.
Boxing official, Anthony Ruta that had accompanied Mchmiatumbo to Russia, pointed out they had no complaints following the results, insisting the Tanzanian boxer lost fairly.
He said losing is part of the game and disclosed there was no any dirty tactic deployed by either the Russian boxer's coaches or the organizers.
He disclosed the Russian boxer's coaches admitted Mchumiatumbo gave a good account of himself although he lost the fight.
Ruta maintained Mchumiatumbo is focusing on going for intensive training with the aim of excelling in his coming fight.
Patriot Boxing Promotions that is under Russian promoter, Alexander Popov, organized the fights, which were sanctioned by Russian Boxing Federation.
Mchumiatumbo's record currently stands at 14 wins, seven losses, whilst one bout was declared a draw, following the loss to Yallyev.
Boxrec has rated Mchumiatumbo first in the list of four boxers in the Heavyweight division in Tanzania.
The boxer occupies the 501st spot out of 1312 boxers in the division in the world, as per the network, which holds records of boxers fighting at the professional level from all over the world.
Mchumiatumbo had, in his previous fight, succumbed to a second round Technical Knockout loss to Kenya’s Morris Okolla in an international non-title fight which had been scheduled for six rounds.
Yallyev has improved his record to six victories in as many bouts, with three of the victories coming via knockout, after his victory over Mchumiatumbo.
He recorded two wins before coming up against Mchumiatumbo, taming compatriots, German Skobenko and Gaybullo Kuchkarov, in fights which also took place this year.
Yallyev posted unanimous decision victory over Skobenko at Floyd Mayweather Boxing Academy hall in Zhukovka on April 20.
He went on to record Technical Knockout victory over Kuchkarov at Central Square in Gelendzhik on July 20.