On the other hand, Mandonga says today will be a special night in which his Kinguki blow will shatter Dusla into pieces.
"I have eaten well, I have trained well, I have done my homework well, there is no stone left unturned,"he said.
"I have come to Kenya to do business and Wanyonyi will be the profit. To my fans, get your tickets early because this fight will be cleared in record time," Mandonga said.
Wanyonyi had a surprise loss to Mandonga on Technical Knock Out (TKO) in the fifth round at the Kenyatta International Convention Centre in Nairobi on January 14.
Since then, he has been stepping up his game at Pal Pal Gymnasium in Gikomba ahead of the expected cutthroat rematch today.
In his latest fight, Wanyonyi floored Charles Kakande of Uganda on TKO on March 25 at the Kasarani Indoor Arena, the same night Mandonga also overcame Lucky Yamuzi, also of Uganda.
Apart from the Wanyonyi- Mandonga duel, there are six other fight cards lined up in the night.
Tickets for today's fights can be bought online at ticketsasa.com. Advance general tickets goes for Sh1000 while the ringside/VIP goes for Sh5500.
At the gate, the same will go for Sh1500 and Sh7500 in that order.
Meanwhile, Britain's Maxi Hughes says he has earned the right to headline in America as he prepares to face former world champion George Kambosos today, adds BBC reports.
Hughes, 33, will fight Australian Kambosos in an IBF lightweight world-title eliminator at FireLake Arena in Shawnee, Oklahoma.
He has won 26 fights with five losses and two draws.
"I've had my tough times in boxing and I've shown a lot of mental strength," he said at Thursday's news conference.