Yang Jian Bing, a flyweight fighter who was scheduled to compete today at ONE Championship 35, tragically died following his weight cut for the year-end show.

ONE Championship announced Bing's passing in a released statement.

According to the promotion, Bing passed away on 11 December 2015 at 12.06 PM due to cardiopulmonary failure. The formal hospital medical reports and procedures are still being carried out.

Bing was 21 years old.

"There is nothing more profoundly tragic and sad than when a member of the ONE Championship family, current or past, passes away," ONE CEO Victor Cui said. "Our thoughts and prayers are with the family and loved ones of Yang Jian Bing. We will work closely with the family and offer all the support they need in any way we can during this very difficult time."

"I want to thank all sports fans around the world for their concern, thoughts and prayers. At this time, we appreciate everyone respecting the Yang family's privacy as they mourn the loss of their beloved son and brother."

Dojodrifter.com interviewed hospital staff in Pasay, Philippines and were informed that Bing arrived at the hospital "unconscious and non-responsive" and kept losing his pulse sporadically. He later died of Rhabdomyolysis, which is the breakdown of muscle tissue that leads to the release of muscle fiber contents into the blood.

Bing compiled a 5-1 record in MMA and was scheduled to face Geje Eustaquio at ‘Spirit of Champions' today.

This is not MMA's first weight cutting related tragedy. Although it is a staple in the sport, it has been the cause for numerous hospitalizations and several deaths over the years. This latest incident will likely spark the debate once more and lead to increased scrutiny.