Some have called it a lucky shot, but Chan Sung Jung offered no excuses for being knocked out by Yair Rodriguez’s insane elbow in the main event of UFC Fight Night 139.

Jung (14-5 MMA, 4-2 UFC) was put on the wrong end of one the craziest highlight-reel knockouts in UFC history when, with just one second remaining in his featherweight headliner with Rodriguez (11-2 MMA, 7-1 UFC), “The Korean Zombie” was caught clean with a ducking, no-look elbow that turned his lights out.

It was revealed post-fight that Jung was just one tick on the clock away from winning a decision on the scorecards, which makes the timing of the knockout that much more painful. Jung was transported to a hospital post-fight but was released a few hours later after his CT scans came back clear.

The biggest hit was likely inflicted on Jung’s ego, and on Sunday he released his fist post-fight comments. He apologized to his supporters and said he must remain stateside for a few days, via Google Translate, before returning home to South Korea (via Facebook):

I do not have an excuse. I am so sorry to all of you who helped me .. Thank you .. Congratulations to those who hate me. I have to be in hospital for a few days. I have not been able to get on the plane yet. I’m ashamed … I’ll go back and see you.

Jung’s loss to Rodriguez marked an unsuccessful return to competition from a roughly 21-month layoff. The former 145-pound title challenger looked solid throughout the contest.

The timeline for Jung’s potential return to competition is unknown. He will likely require some time off after such a brutal knockout, but so long as he’s healthy, his break between fights should be much shorter than in recent years.

For complete coverage of UFC Fight Night 139, check out the UFC Events section of the site.