Both sides are in talks for the rematch and hoping to make a deal to fight in Puerto Rico for March.

Jerusalem (25-3, 12 KOs), who is rated No. 1 at 105 pounds, one place below Collazo, previously held the WBO title before losing it to Collazo in his first defense in May 2023.

He remains keen to get revenge and put their first fight behind him.

"I will win, not just in words but in deeds and beliefs," Jerusalem (25-3, 12 KOs) told The Ring. "I believe in myself, by God's will, I will win this time, no excuses, no reasons this is war.

"This time my team and I prepared a lot for this fight, and I will defend my belt and defeat Collazo this time."

His mindset is a far cry from when he won the WBO title in a watershed moment four months earlier, as a 4/1 (+475) underdog, against Masataka Taniguchi in January 2023.

Jerusalem had enjoyed a three-month training at home in Cebu, Philippines and also his manager's home city, Nagoya, in Japan.

He arrived in Osaka a week prior to facing Taniguchi, just two pounds over the strawweight limit.

"Before I got hit, I was nervous," he admitted. "I didn't expect to win because my opponent is very strong. I am the challenger, but I do my best for that fight. I trained 100 percent for the fight. I did [in the fight] what I did in training.

"The first round, I lacked confidence, I knew my opponent was good."

After the opening round, Jerusalem and his corner shifted gears which almost instantly bore fruit.

"I moved a lot, I looked for the perfect timing, a perfect left hand," he said. "Just one shot. He got up and he went down again [without the fight continuing.] The referee was counting two times from that one punch."

Despite subsequently losing to Collazo, it was clearly a pivotal moment in Jerusalem's career and allowed him to have belief in his own ability.

"When I won my first world title match with Taniguchi that time, I was so happy because it was my first time and my team won a world title championship," he said.

"After that I was defeated by Collazo that makes my heart more stronger and stand up again and learn a lot from it.

"Then I won my second world title with Yudai Shigeoka with my hard work and learning. I managed to defend my belt couple of times that built my confidence and strive to learn and to improve more."