Lucas Browne doesn’t understand how the British Boxing Board of Control considered him too old to challenge England’s Daniel Dubois for his piece of the WBA heavyweight championship.

The 43-year-old Browne upset Junior Fa by first-round technical knockout in his last fight. New Zealand’s Fa (20-2, 11 KOs) is 10 years younger and entered the ring as a 14-1 favorite to beat Browne in their 10-rounder last June 5 on the Devin Haney-George Kambosos Jr. undercard at Marvel Stadium in Melbourne, Australia.

Once the Australian veteran missed out on the Dubois bout, Browne accepted a 10-round fight against Jarrell Miller on Saturday night in Dubai. Browne will be Miller’s most formidable opponent since two performance-enhancing drug ordeals essentially cost the unbeaten Brooklyn native the past four years of his career.

Miller is 34 and has won 81 percent of his professional bouts by knockout, but Browne believes he can pull off another upset in a main event ProBoxTV.com will stream in the United States (12 p.m. ET; 9 a.m. PT).

“My age shouldn’t mean anything,” Browne said. “I didn’t start [boxing] until I was 32 and I haven’t been getting hit in the head since I was 16. I’m in it for as long as I can go. And if people say, ‘You’re too old,’ just because they think I’m too old, that’s wrong. If I was getting hit around the head and getting beaten, 100 percent, I would get it.”

Perth’s Browne (31-3, 27 KOs) has won back-to-back bouts by knockout since countryman Paul Gallen (then 10-0-1) stopped him in the first round of their April 2021 bout in Wollongong, Australia. Browne contends that Gallen illegally hit him on the back of his head several times, but he is thankful for this opportunity to knock off the besmirched Miller (25-0-1, 21 KOs).

“If I win over Miller, it means I’m still here,” said Browne, who has been knocked out three times since March 2018. “There were talks about me fighting Daniel Dubois for the WBA regular [title], which is great. But the British Boxing Board of Control rejected me because I was too old. This was after the Fa fight. So, I’m thinking, ‘OK. Judge me off the Gallen loss, fair enough.’ But I’ve since had two good wins over quality guys.”

Miller has won two fights against journeymen since he resumed his career last June 23. He previously served a two-year suspension for failing another PED test prior to a fight against Jerry Forrest that ESPN was supposed to televise in July 2020 from MGM Grand Conference Center in Las Vegas.

The 6-foot-4, 333-pound Miller’s last fight against a credible heavyweight occurred in November 2018, when he stopped Romania’s Bogdan Dinu, who was 18-0 at that time, in the fourth round at Kansas Star Arena in Mulvane, Kansas.

“He’s just a bully,” Browne said of Miller. “He just comes forward. There is a constant come forward. I don’t know if me having the power I have in my big jab, if he will be able to keep coming forward with me. Is he going to want to? The best thing about that is that I won’t have to go looking for it. This isn’t going to be a game of footwork. … I think it will be very entertaining.”

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.