Muhammad Ali was one of the greatest fighters of all time. Not just in the boxing ring; he was one of the greatest fighters this world has ever seen in life. Period. So, when one of his daughters, Hana, shared this incredible story on the final moments of Ali's life, it should not come as a surprise.

"Our hearts are literally hurting. But we are so happy daddy is free now. We all tried to stay strong and whispered in his ear, 'you can go now. we will be OK. We love you. Thank you. You can go back to God Now," Hana wrote. "All of us were around him hugging and kissing him and holding his hands, chanting the Islamic prayer. All of his organs failed, but his HEART wouldn't stop beating. For 30 minutes ... his heart just kept beating. No one had ever seen anything like it. A true testament to the strength of his Spirit and Will! Thank you all for your love and support!!"

That one hits home. One of the strongest men in our history's heart kept beating even after the rest of his body could no longer continue.

He will truly live on forever in our memories.

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Muhammad Ali continued to fight, even on his death bed. Getty Images