Marcin Prachnio (born July 14, 1988) is a Polish mixed martial artist currently competing in the Light Heavyweight division of the Ultimate Fighting Championship.
After three years of requesting his parents for permission, Prachnio started training karate at the age of 12.
[2] Seeking for new challenges, Prachnio moved to Amsterdam in 2013 in order to transition to mixed martial arts.
Prachnio started his professional mixed martial arts career in 2013, competing solely in European regional circuit.
Despite previous intentions to drop down to middleweight, he made his promotional debut in heavyweight division against Alexandre Machado at ONE: Tribe of Warriors on February 20, 2016.
[4] Prachnio was scheduled to face Vitaly Bigdash for the ONE Middleweight World Championship bout on January 14, 2017, at ONE: Quest for Power.
[5] However, Prachnio was forced to withdraw due to injury and was replaced by Aung La Nsang.
[10] In his sophomore bout in the organization, Prachnio faced Magomed Ankalaev on September 15, 2018 at UFC Fight Night: Hunt vs. Oleinik.