A professional MMA competitor since 2007, Yang has formerly competed for DEEP and World Victory Road.
In June 2010, Yang signed with the UFC, joining Chan Sung Jung as the members of Korean Top Team competing in Zuffa organizations.
Yang faced Court McGee on September 17, 2011 in the co-main event at UFC Fight Night 25.
Yang faced Brad Tavares on May 15, 2012 at UFC on Fuel TV: Korean Zombie vs.
Yang followed that up with an impressive first round TKO of fellow UFC veteran Dennis Hallman at Top FC 6 on April 5, 2015.
In late August, it was confirmed that Yang had re-signed with the UFC and will continue competing in the promotion's Middleweight division.
[11] Yang was expected to face promotional newcomer Ryan Janes on October 15, 2016 at UFC Fight Night 97.
[13][14] Yang returned to competition three years later to face Chinese fighter Paul Cheng.