The Challenge star and former Coventry City footballer Ashley Cain’s young child has died.

In a heartbreaking post, Cain shared that his eight-month-old daughter, Azaylia Diamond Cain, passed away after a challenging battle with acute myeloid leukemia, a rare and aggressive form of leukemia that she was diagnosed with at eight weeks old.

The BBC previously reported the family had raised  £1.485 million ($2.065 million in USD) for baby Azaylia’s fight after she had suffered a relapse after “three rounds of chemotherapy and a bone marrow transplant.” The funds went toward Azaylia’s CAR-T treatment and haplo transplant in Singapore. The CAR-T therapy is specific to the patient and involves reprogramming the patient’s immune system cells to target the cancer cells.

On Monday, Cain shared a heartbreaking posting detailing how Azaylia changed his life. “You gave my life purpose, my face a smile, filled my heart with love and my soul with pride. I can’t put into words my sadness and pain, there aren’t words to describe it. I love you with every ounce of my body and I miss you so much already…you made me a better man. You made me the person I’ve always wanted to be. You’ve taught me more in your 8 months than I’ve learned my whole life.”

He closed the emotional post stating that he was “blessed, honoured, and privileged to be your father.  I would go through all the pain again and again because what you gave me in those eight months will live with me for eternity.”

Rest easy, Azaylia Diamond Cain. We are thinking of the Cain family and their loved ones at this time.