Kiwi mixed martial arts pioneer Mark Hunt is already moving on, after a first-round submission loss last week in Moscow.
The 44-year-old tapped out to Ukrainian grappler Aleksei Oleinik at UFC Fight Night 136, his third defeat in four outings.
That contest represented the penultimate of Hunt's UFC contract, but a call-out from a fellow slugger has the former kickboxing world champion with his eye on likely his final Octagon visit.
Hunt is pushing for a spot on the Adelaide card in December against Turkish striker Gokhan Saki, who suggested the matchup on social media.
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Saki, 1-1 in the UFC, is one of the most decorated strikers in the company, holding a 83-12 professional kickboxing record, but he would have to move up from the light-heavyweight division for the bout.
"When I was younger, I would watch K1 on TV/internet and [Mark Hunt] was knocking them out cold and became the champ," Saki said on Twitter.
"Years later, I myself fought in the K1. We never crossed.
"Again, years later, the possibility presents itself, but this time in the Octagon. Would be an honour."
Hunt is currently in the middle of a legal battle with the UFC over Brock Lesnar's failed drugs test after a 2016 fight between the two.
Despite the personal differences between Hunt and his employers, he is still a valued member of the heavyweight roster, given his appeal in the Asian and Australasian markets.
But Hunt is unlikely to extend his contract, commenting last week in Russia that he intends to continue fighting, but not for the UFC.