Musumeci is venturing up to bantamweight in search of redemption against Gabriel Sousa.
The ONE flyweight submission grappling world champion has not suffered a defeat since he was submitted by Sousa before he joined ONE.
“Darth Rigatoni” has since embarked on a 14-bout winning streak, with six of those victories coming under the ONE banner.
He even showed that size is no object in his last outing, submitting former ONE lightweight MMA world champion Shinya Aoki this past October.
Sousa has been a Brazilian Jiu-Jitsu black belt since 2018, and he claimed silver at the 2022 ADCC world championships.
The pair will rematch in a non-title tilt, with Musumeci looking to get back one of the few losses of his career and Sousa trying to make a splash in his promotional debut.
Harrison, on the other hand, has been teasing that he only has two fights left in his career, and the British Muay Thai legend now has the first one locked in.
“Hitman” faces Japanese rising star Katsuki Kitano in a bantamweight Muay Thai bout at ONE 167.
The 38-year-old Harrison was last in action in 2022 when he lost to former ONE bantamweight Muay Thai world champion Nong-O Hama before taking some time away to recover from a torn ACL.
Harrison's fights always guarantee fireworks, none more so than his crazy one-round war with Muangthai PK Saenchai, also in 2022.
That night, he recovered from two early knockdowns to score three of his own and record one of the wildest come-from-behind wins in ONE history.
He’ll hope for a smoother ride this time out, but Kitano isn’t one to roll over without a fight.
The 27-year-old's ONE debut couldn't have started any better this past October, when he dropped Halil Kutukcu with a perfectly timed elbow in the first round.
But he was forced to show his grit in the end despite being up on the scorecards, ultimately walking away the unanimous decision winner after a torrid third round.
By that showing, Kitano will certainly meet Harrison in the middle and give the 117-fight veteran another memorable battle.