Transcript for Ronda Rousey's Return Ends With 48-Second Knockout
By the way another big sports story this morning and it involves Ronda Rousey. Yeah, it sure does, the ufc star was hoping to mount a big comeback after losing her belt but had another tough night and Diane Macedo has much more. Ron wants you to say something. I'm not going to. I like my job. I intend to keep it. This fight was no doubt painful for Ronda Rousey but painful to watch. After disappearing for a year, she came out seemingly in the best shape of her life and more focused than ever. All the more reason fans were completely shocked when it ended with one of the fastest losses in ufc history. Overnight what was meant to be a superstar comeback ended in another crippling defeat. Watch as Ronda Rousey falls just 48 seconds into the first round. Reigning champion Amanda nunes, aka, the lioness pummeled the former champ with one vicious blow after another. I know the girl can take my punches, I know and it happened tonight. Reporter: Tough year for Rousey who fell from grace after her first loss last November to holly Holm. The knockout ruined her undefeated record but as she told Ellen DeGeneres in February, it also left her incredibly depressed. I was literally sitting there and like thinking about killing myself in the exact second I'm nothing. What do I do anymore? The big question is what's next for the once seemingly unbeatable fighting star who stunned the masses both in the cage and on the red carpet. Some are calling her a sore loser after last time without addressing the crowd or press. Nunes seems to be poking fun with this image showing her pushing Rousey in a stroller as she holds her belt. You can say a big ouch to that one. Yeah. But the president of the ufc also reminded us that it is only because of Ronda Rousey that women were allowed in the ufc. They never would be until she convinced them. I think that's a great point. Whether you want to call her a sore loser or not she's been a pioneer. All her predecessors at the least owe her that. How long Dan would last in the ring with -- I can answer that. 0.00001 seconds. Someone said you could beat Rousey. I'm good watching from the catch. I'll just analyze from right here. Obviously.
This transcript has been automatically generated and may not be 100% accurate.