
UFC 321 has suffered a last-minute blow ahead of Saturday's stacked card.
The UFC returns to Abu Dhabi with a blockbuster line-up, with Tom Aspinall vs. Ciryl Gane headlining the event.
Aspinall makes the first defence of his UFC heavyweight title against Gane, who is aiming to become an undisputed UFC champion at the third time of asking, having fallen short against Francis Ngannou and Jon Jones.
The UFC heavyweight championship isn't the only title on the line at UFC 321 as Virna Jandiroba and Mackenzie Dern compete for the vacant UFC women's strawweight belt.
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Elsewhere on the card, Umar Nurmagomedov meets Mario Bautista in a pivotal showdown at bantamweight, with the winner in line to face UFC champion Merab Dvalishvili.
Not to mention a heavyweight eliminator between Alexander Volkov and Jailton Almeida and a light-heavyweight tilt between Aleksandar Rakic and Azamat Murzakanov.

The preliminary card sees the likes of Nasrat Haqparast, Ikram Aliskerov, Ludovít Klein and Nathaniel Wood in action.
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But Abdul-Kareem Al-Selwady won't be fighting at UFC 321 due to 'personal reasons'.
Al-Selwady was supposed to face Matheus Camilo in a lightweight clash.
However, he was forced to withdraw despite making weight.
Al-Selwady took to social media to release a statement in the wake of his withdrawal.
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"It’s written and I will not question it," he wrote on Instagram. "All I know is I was fully prepared, best camp of my career, on weight and ready to go, it couldn’t have gone any better and Allah didn’t have it planned for me.
"Inshallah it will all be cleared soon, do not ask me because I myself don’t know.”
At the official UFC 321 weigh-ins, Jon Anik said the UFC will look to rebook Camilo 'in short order'.

UFC 321 weigh-ins results
Fighters competing at UFC 321 weighed in on Friday at the official weigh-ins.
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24 of the 26 fighters scheduled to compete at UFC 321 successfully made weight, including Aspinall, Gane, Jandiroba and Dern.
Two fighters came in overweight as Azat Maksum and Jose Delgado failed to make weight for their respective fights.
Maksum came in at 129lbs, 3lbs over the flyweight limit.
But his bout with Mitch Raposo will still go ahead, with the Kazakh fighter forfeiting 30 per cent of his purse.
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Delgado also came in heavy as he weighed 147lbs, 1lbs over the featherweight limit.
It remains to be seen whether his bout with Wood will stay on the card.
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Topics: Tom Aspinall, UFC