"I don't see him losing the belt any time soon. He's good. I think I am the person to beat him, and my mission stays the same – beat the next man in front of me."
Things didn't look like they were going to go all that much differently in Houston on Sunday for Whittaker early as, after struggling to read Adesanya for most of the round, he got sent to the canvas in the final moments of the round.
He adjusted well though, pressuring Adesanya on the feet and mixing in his wrestling well to really test the champion. While Whittaker was able to take a couple of rounds off Adesanya, the champion's control of the octagon coupled with his accuracy and output on the feet saw him take a deserved decision win to add another title defence to his growing legacy.
Speaking about the fight, Whittaker said he felt he had done enough to win.
"This one was better than the first one, huh?" Whittaker said. "I thought I did enough.
"Don't get me wrong, I don't want this popping up in a highlight reel screaming 'Rob thinks he won' blah blah blah, I'm not taking anything away from him because literally, he won. He's got the belt, that's how it works.
"At the moment, Izzy was my biggest obstacle; he was my biggest hurdle. He beat me in a good thrashing the first time, so I've been working and angling myself to evolve and get better. I've done that, and you can see in this fight I've just had with him how far I've come, to the point where I think I beat him, so I'm excited for the future.
"The ceiling is nowhere in sight. There is no ceiling for me I believe."
However, a third part to their story will have to wait. As ended up being the case following their first fight, Whittaker will now have to work his way back to a title shot to allow for someone else to have a shot at dethroning Adesanya.
American Jared Cannonier appears to be next in line, after a knockout win over Derek Brunson earlier on the UFC 271 card saw him earn a performance of the night bonus and catch the attention of UFC president Dana White.
"I was excited to see that fight to see how it was going to play out," White said of Cannonier's bout against Brunson. "It was an awesome fight and, yeah, I'm not going to say no to Cannonier."