Amanda Nunes will attempt to defend her featherweight championship against Felicia Spencer. Could this fight cement Nunes as the greatest fighter of all time?

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Kaitlin O'Toole: Get excited, fight fans. Amanda Nunes returns to the octagon to defend her featherweight championship against Felicia Spencer Saturday at UFC 250. Joining me now for a preview of the fight is SI's Justin Barrasso. Justin, she may be the greatest woman fighter in the UFC, certainly one of the greatest fighters, regardless of gender. If she defeats Spencer tomorrow in dominating fashion, is she the greatest of all time? 

Justin Barrasso:  She might already be. I mean, every fighter's got to get her day or his day where they're a little vulnerable, a little weak. You know, no one remains untouchable forever. So even if even if Nunes loses against Spencer, I don't think she will. I think she still has that claim for one of the greatest of all time. If she beats Felicia Spencer tomorrow and like you said, if she dominates, then I think she definitely helps cement that claim. I'm sure that, you know, the dissenting votes from Ronda Rousey and Cris Cyborg. But but I agree. I think Amanda is the greatest female fighter in the world. And I think she's again, she's regardless of gender. Maybe the hardest hitting fighter in mixed martial arts right now. Yeah, she's a special talent. And I think we're gonna see that again tomorrow night. 

Kaitlin O'Toole: So she's a champion of two different divisions. And the problem is, if she does win Saturday night, you know, she doesn't really have any legitimate contenders left. When you're that good, what do you do next? 

Justin Barrasso: It's a good problem to have, isn't it? I agree. There's really no legitimate contenders. Maybe you do a trilogy with Valentino. But the problem with that is, you know, she's already beat Valentino twice. So I think it's tough. I mean, you wonder to like it'd be interesting, to look at the pay-per-view numbers. And this is a fight where Amanda is heavily, you know, the favorite. Does that hurt pay-per-view buys? Is it tough for people to spend money when you know the champion is going to maul her opponent? It's a little like old school Mike Tyson in that regard. Or will people want to see it? So I think it's going to be interesting to see the numbers in the show if the interest level is there. But there's no question that Amanda is one of the greatest of all time. 

Kaitlin O'Toole: Absolutely. We're looking forward to the fight. Justin, thanks so much for your insight on this. Appreciate it. Thank you.