Eddie Hearn, promoter for former two-time heavyweight champion Anthony Joshua, believes the British star has fully rebuilt himself.

At the start of 2023, Joshua was looking to bounce back after suffering back to back defeats at the hands of unified champion Oleksandr Usyk.

In April, Joshua returned to the ring and picked up a twelve round unanimous decision over Jermaine Franklin. It was Joshua's first bout with trainer Derrick James.

Joshua then came back in August, with a one-punch knockout of late-replacement Robert Helenius.

On Saturday night in Saudi Arabia, he closed out the year with a third win - a one-sided beatdown of Otto Wallin. After busting up Wallin for five rounds, the Swede's corner waved off the fight.

"I believe this Anthony Joshua is the best heavyweight in the world. That was a punch-perfect performance tonight. A stunning performance. One that says he is back. With this mindset in this team, I think he is unbeatable. 2024 will be massive for him," Hearn told TNT Sports.

Joshua had been slated to face longtime rival Deontay Wilder on a date in March in Saudi Arabia.

However, Wilder suffered an upset decision loss at the hands of Joseph Parker - which served as the co-feature to Joshua's bout with Wallin.

At the moment, the more likely scenario is to match Joshua against unbeaten Filip Hrgovic for the vacant IBF heavyweight belt. Hrgovic also saw action on Saturday in Saudi Arabia, with a one round demolition of Mark De Mori.

In February, Usyk and WBC champion Tyson Fury will collide for the undisputed crown. There is a two-way rematch clause in the agreement, so a second fight is likely to happen.

Because of the IBF's outstanding order for the Usyk-Fury winner to make a mandatory defense against Hrgovic, the belt will likely become vacant once their first bout concludes. And that opens the door for a title fight between Joshua and Hrgovic.

"It was a tough decision between the championship and Wilder. We signed for Wilder, he lost tonight, that's OK, it happens in boxing. Maybe it is a blessing because this guy is about championships. He wants to become a three-time heavyweight world champion. It will be Filip Hrgovic against AJ for the world title," Hearn said.

"I am so happy to see him smiling and performing so well. He is a dangerous man when he is in that kind of mood. 2024 is going to be very interesting, every heavyweight should be on notice - he is back."