The highly anticipated heavyweight encounter is scheduled to take place at the Principality Stadium in Cardiff and will be streamed live on Netflix.
With Fury aged 38 and Joshua 37, some boxing observers believe the fight has lost some of its appeal because it did not happen during the fighters' prime years. However, Chisora, who has faced Fury three times, insists the timing remains appropriate.
The 42-year-old, who has yet to make a definitive decision on his retirement following his defeat to Deontay Wilder in April, also revealed that he has maintained regular contact with Joshua as the former world champion prepares for the encounter.
Speaking to talkSPORT, Chisora disclosed that he speaks with Joshua every Friday to get updates on his training camp.
“I speak to him every Friday after his week of training camp,” Chisora told talkSPORT.
“I send him a message asking him how it was, and he says he is killing it. Whatever happens, it is going to be an exciting fight.”
He further expressed his enthusiasm for the contest, rejecting arguments that the two heavyweights had waited too long to settle their rivalry.
“I am so excited about it. We are not getting it too late; it is at the right time,” he added.
Joshua enters the contest as the underdog, despite recording victories over Jake Paul in December 2025 and Kristian Prenga in July. He stopped Paul in the sixth round, while his victory over Prenga came after he was knocked down in the opening round.
Although those performances have raised questions about his form compared with his peak years, Chisora believes Joshua still possesses the punching power required to stop Fury.
According to him, Joshua must make an early statement if he hopes to secure victory, warning that allowing Fury to settle into the contest could make the fight more difficult.
“AJ has to knock him out in the first six rounds. After that, it is a long night, but AJ has the power to knock out Tyson any round,” he said.
Chisora also highlighted Fury's endurance and ability to maintain a high work rate over the distance, suggesting that the former heavyweight champion could look to frustrate Joshua by increasing the pace of the contest.
“He has the endurance to sustain it for 12 rounds, and throw a higher volume of punches,” Chisora said.
The December 11 meeting is expected to attract considerable attention from boxing fans, with the two former world champions finally preparing to face each other in a contest that has been discussed for several years.