On Friday, the greatest sporting icon of our times passed away in a Phoenix hospital.
Muhammad Ali was 74 and died after a 35-year battle with Parkinson's disease.
He had been admitted to hospital on Thursday after suffering from respiratory problems.
On Twitter, Ali's daughter Hana detailed her father's final moments.
Surrounded by his family, Ali's desire to endure remained. For 30 minutes after his organs failed, the great man's heart continued to beat.
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 okay. We love you. Thank you. You can go back to God now."
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 for all your love and support.
Hana Ali is the author of her father's autobiography 'The Soul Of A Butterfly'.