Jung mødte [[Dustin Poirier]] den maj 15, 2012, ved UFC on Fuel TV: koreansk Zombie vs Poirier.<ref>{{Kilde nyheder|url=http://mmajunkie.com/news/27371/dustin-poirier-vs-chan-sung-jung-headlines-ufc-on-fx-3-in-virginia|title=Dustin Poirier vs. Chan Sung Jung headlines UFC on Fuel TV 3 in Virginia|date=10. februar 2012|archive-url=https://web.archive.org/web/20120212115751/http://mmajunkie.com/news/27371/dustin-poirier-vs-chan-sung-jung-headlines-ufc-on-fx-3-in-virginia.mma|archive-date=12. februar 2012}}</ref> Jung besejrede Poirier via submission i fjerde runde. Præstationen tildelte Jung ''Submission of the Night-bonusen'', og begge kæmpere blev tildelte Fight of the Night-bonussen.<ref>{{Cite web|url=http://mmajunkie.com/news/28724/ufc-on-fuel-tv-3-bonuses-jung-earns-80k-while-poirier-lawlor-net-40k.mma|title=UFC on FUEL TV 3 bonuses: Jung earns $80K while Poirier, Lawlor net $…|date=2012-07-15|website=archive.is|access-date=2019-04-14|archive-date=15. juli 2012|archive-url=https://archive.today/20120715083141/http://mmajunkie.com/news/28724/ufc-on-fuel-tv-3-bonuses-jung-earns-80k-while-poirier-lawlor-net-40k.mma|url-status=dead}}</ref> Kampen blev hædret som Fight of the Year og Submission of the Year med flere publikationer ved afslutningen af 2012.<ref>{{Cite web|url=http://www.mmafighting.com/2012/12/21/3789372/2012-fight-of-the-year-chan-sung-jung-vs-dustin-poirier-ufc-on-fuel-3|title=2012 Fight of the Year: Chan-Sung Jung vs. Dustin Poirier|website=mmafighting.com|date=21. december 2012}}</ref>
Levende_personer Sport Kultur