Yoshihiro Akiyama Choo Sung-hoon Retirement Fight Announced: Veteran MMA Fighter Declares Final Challenge at Age 51
Mixed martial arts veteran and television personality Choo Sung-hoon (also known as Yoshihiro Akiyama) has officially announced his intention to return to the cage for one last professional fight before retiring.

On August 11, 2026, Choo uploaded a video titled “Choo Sung-hoon (Age 51), What I Want to Say For the Last Time” on his official YouTube channel, sharing his inner reflections and retirement plans with subscribers.
The Motivation Behind a Final Professional Challenge
Despite achieving significant social media success over the past year, Choo expressed a lingering desire to conclude his athletic career with clarity and dignity as an active fighter:
| Career Parameter | Announcement & Event Details |
| Fighter | Choo Sung-hoon / Yoshihiro Akiyama (Age 51) |
| Retirement Stage | Black Combat 17 |
| Event Date | November 21, 2026 |
| Venue | Gocheok Sky Dome (Seoul, South Korea) |
| Opponent | To Be Announced |
In his YouTube address, Choo reflected on his personal identity:
*”Last year, many people showed love for my YouTube channel, which was fun and successful. But somewhere deep inside, even if just 1%, I always felt, ‘I am an MMA fighter.’
Looking at myself from the outside, it felt like people didn’t know whether I was retired or not, or if I was a fighter or a full-time YouTuber. It didn’t look cool to me at all. That is the main reason for this final challenge—to remain cool as a man until the very end.”*
— Choo Sung-hoon
Family Concerns and Age Expectations
Choo shared that his family expressed natural concerns regarding his decision to step back into the cage at age 51. When asked about his wife Shiho Yano’s reaction, Choo noted she simply told him, “It’s scary.” His daughter, Choo Sarang, also conveyed her worries for his safety.
Addressing his age, Choo added with anticipation:
“When I fight, I will be 51 years old in Korean age. When you see fathers over 50 running at school sports days, they look like grandfathers. I am most curious and excited to see how well I can move in the cage.”
Official Retirement Arena: Black Combat 17
The Yoshihiro Akiyama Choo Sung-hoon Retirement Fight will officially take place on November 21, 2026, at the Gocheok Sky Dome in Seoul during Black Combat 17, the promotion’s 17th numbered event.
While his final opponent has yet to be revealed, combat sports fans across Asia and worldwide are eagerly awaiting the ultimate cage entrance of one of Asian MMA’s most enduring figures.


