Marcus Davis moved to lightweight for the first time to take on Jeremy Stephens at UFC 125. Davis looked big and strong which isn't surprising given his having fought at 170 pounds for years now. The fight was a chance for Marcus to show off his technical boxing skills and he did that with a solid jab and powerful left hand from his southpaw stance. The funny thing about MMA though, is that even if you do everything right for most of the fight you can still lose.
In the third round Stephens clearly knew he was losing the fight on the judge's scorecards and started to try to push forward and make something happen but was mostly just running into jabs from Davis. However, both men threw right hands at exactly the same time but Stephens' landed cleaner and harder and Davis tumbled to the mat unconscious. Jeremy dove down with one more punch but it was simply an exclamation point as the fight was already over once the first shot connected.
It was a huge come-from-behind KO that crushes Davis' hopes at 155 and keeps Stephens around as a fun KO artist.