Sunday was supposed to be Vitor Belfort’s swan song, but it will have to wait.

Belfort (26-13 MMA, 15-10 UFC) was set for the FS1-televised co-headliner vs. Uriah Hall (13-8 MMA, 6-6 UFC) at UFC Fight Night 124, but Hall was unable to step on the scale at this morning’s weigh-ins and forced to withdraw.

Hall was sent to the hospital after what was, by all accounts, a scary scene, which fellow UFC Fight Night 124 competitor Paige VanZant verified (via Twitter).

Clearly, the main concern right now is Hall’s well being. But this is also a tough break for Belfort, who had mentally prepared himself for retirement, not to mention put in the long hours to train, all for nothing. Still, he had a classy response to the situation (via Instagram).

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Pessoal, dediquei dois meses da minha vida para esse training camp. Passei esse tempo todo longe da minha família e todos sabem como isso é difícil para mim… Contratei os melhores profissionais q pude, minha equipe se dedicou intensamente mesmo durante as festas de final de ano. Cumpri todas minhas obrigações na semana da luta, cortei peso e subi na balança com o peso q tenho q bater para lutar… Infelizmente meu oponente teve algum problema durante o corte de peso. Torço para sua breve recuperação. Agora só quero voltar para casa e ver minha família… Muito obrigado por todo apoio e carinho de todos os q me acompanham. I dedicated 2 months for this training camp. Stayed away from my family and who knows me knows how hard this is for me. I spent all necessary to have the best structure to achieve my goal. My team had an intense dedication even during the holidays. I did all my fight week obligations, cut the weight and made the fight weight. Unfortunately my opponent had a problem during his weight cut, I wish him a soon recovery @uriahhall .Now I just want to go back home and see my family. Thanks for all the support along this training camp.Love you all!!

A post shared by Vitor "The Phenom" Belfort (@vitorbelfort) on Jan 13, 2018 at 10:13am PST

I dedicated 2 months for this training camp. Stayed away from my family and who knows me knows how hard this is for me. I spent all necessary to have the best structure to achieve my goal. My team had an intense dedication even during the holidays. I did all my fight week obligations, cut the weight and made the fight weight. Unfortunately my opponent had a problem during his weight cut, I wish him a soon recovery @uriahhall .Now I just want to go back home and see my family. Thanks for all the support along this training camp.Love you all!!

UFC Fight Night 124 takes place Sunday at Scottrade Center in St. Louis and is the promotion’s first trip to the city. The card airs on FS1 following early prelims on UFC Fight Pass.

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For more on UFC Fight Night 124, check out the UFC Rumors section of the site.