Just a matter of a week ago, it seemed as if there were no real threats to UFC Featherweight Champion, Jose Aldo.

Aldo has seemingly cleaned out the division and is now preparing to face Erik Koch at UFC 149 later this year.

But, on Tuesday, some light may have been shed on the featherweight tunnel.

Chan Sung Jung put on the best performance of his career in a fourth-round submission win over Dustin Poirier.

Long thought of as just a bit of a novelty act, Jung had made a name for himself for being able to take a beating and keep coming forward, hence the name “The Korean Zombie”. Nobody really thought of him as a legit title contender.

But, on Tuesday night in the main event of UFC on Fuel TV 3, Jung showed great all-around skills and some of the slickest jiu-jitsu I have seen in a fight in quite sometime.

Jung had tremendous transitions, great execution, and he also mixed up his striking to include leg kicks and knees. It was clear that Jung has improved a great deal since joining the UFC, where he is now 3-0.

While he still needs to keep improving to beat the likes of Aldo, he does present one thing that Aldo’s opponents haven’t seemed to possess, and that is the ability to press the action.

Most of Aldo’s opponents have been very tentative against the champion and have tried to react to what Aldo does as opposed to making him react to what they do.

That won’t be an issue with Jung. He is going to fall on his sword and go with his style, win or lose. I think he could possess a real threat to Aldo because he will be able to eat some punches and kicks and keep coming forward. If the fight goes to the ground, it is hard to see anyone really out-working Jung.

Kenny Florian may have put it best on the broadcast when he said Jung “is always throwing finishing moves at you.” All of his strikes have the intent to end the fight and on the ground, he is always pursuing a submission. He doesn’t give his opponents a chance to relax.

The one area Jung may need to improve is his conditioning, but he will have a while to do that before facing Aldo. I think fans would get behind an Aldo vs. Jung bout as well, at least a lot more than Aldo vs. Koch.