J.J. “Superman” Ambrose returns to the octagon Dec. 13 when he battles Kitt “The Killer” Campbell in the main event at Hex Fight Series 20 in Melbourne, Australia. Joining Ambrose will be fellow STEEL Athletics fighter, Juan “Hot Pocket” Lizama, taking on Sam “Slammin” Hibberd on the undercard.

Ambrose (33-8) has been on a tear since moving to the welterweight division full time, rattling off four victories on the year. He opened the year with a submission win over Alaa Mansour in February at Wawan MMA 18 in Kuwait. The Man of STEEL followed that up with submission wins, both by guillotine choke, against Beau Rawiri at HFS 18 in March and Art Hernandez at World Fighting Championship 104 in Laughlin, Nevada, in May.

His last time out in June, Ambrose got pushed a bit further with a unanimous decision win over veteran Akihiro Murayama at Pancrase 306 in Japan.

Campbell (10-4), 6 feet, 2 inches tall, with a 74-inch reach is coming off a five-round unanimous decision loss in October to Isi Fitikefu at Eternal MMA in Melbourne, Australia.

Big, long and strong, the Aussie will be a firm test for Ambrose.

“He’s a really tough fighter … he’s very dangerous. Looking forward to fighting a guy like that,” Ambrose told The Guam Daily Post.

Now in his 50th career fight, including amateur and professional bouts, Ambrose says he’s focused more on wrestling, grappling and strength and conditioning in this training camp.

Ambrose said he likes the results of combining the new-age thinking of strength and conditioning and technique versus the old school toughness of sparring a lot.

“I’ve never been more fit in my life,” said Ambrose, who has to cut weight to 170 pounds for the welterweight division.

“Cutting weight is never fun,” admits Ambrose. “This time I was really strict on my diet and Fit For You Guam helped, we had it really dialed in and started early.”

Lizama (5-1) is coming off a unanimous decision victory at Pancrase 306 and looking to carry that momentum into his fight against Hibberd (7-4). Hibberd is a familiar foe, handing STEEL Athletics fighter Jeff Mesa a submission loss in September at HFS 19 in his last fight.

Lizama said he didn’t change a lot in training after his last fight.

“Make sure you show up twice a day and polish up,” Lizama stressed. “I understand more how I can get better, thanks to JJ. I’m ready to fight my fight and bring it.”

Ambrose is confident in Lizama’s big game attitude, adding, “A lot of guys are gym heroes … he’s a gamer. When he gets under the lights he steps it up and becomes a great fighter.”