Holly Holm was the first fighter to beat Ronda Rousey in UFC
Ronda Rousey is currently considering her future in the sport after she was knocked out by Amanda Nunes in just 48 seconds at UFC 207 in December.
It was her first fight since losing her unbeaten record in November 2015 to Holm, who will compete for the first ever UFC Women's Featherweight Championship at UFC 208 on Saturday night.
And the fellow American believes Rousey will find it very difficult to retire, even if she takes a long time away from MMA.
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"I’m a firm believer in the fact that once a fighter, always a fighter," Holm said.
"She might not ever want to fight again.
"She might not fight for two years, and then she might say, 'You know what? I’m really itching for it. I want to get back in there, I really want to fight. I’ve had enough of this regular life business'.
Ronda Rousey was knocked out by Holly Holm in November 2015
"I think that right now, I think that’s just an honest opinion, I bet she just kind of feels you know what, maybe I’m going to focus on other things right now."
Rousey was the spearhead for the female arm of UFC, successfully defending her bantamweight title six times in the space of three years.
And while Holm became the first fighter to knock her out in the Octagon, she still holds 'Rowdy' in high regard.
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"I have a lot of respect for her," Holm added.
"I’ve never said any different.
"I hope she’s happy, and I hope she does what she wants to do, whether that be fighting, whether that be go on to other things.
"But, all I have to say is any fighter young enough, they might come back for another fight.
"You never know. You never know."