Dylan Tombides, one of the brightest young talents at West Ham, has died at the age of 20.
Tombides fought testicular cancer for the past three years after being diagnosed with it while representing Australia at the Under-17 World Cup in Mexico in the summer of 2011.
A West Ham statement said: "Dylan was respected by everyone who knew him for his intelligent views on the game and his larger than life character. He was a loving son, amazing brother and well-respected member of the West Ham squad. He will be hugely missed by everyone who had the honour of knowing him.
"Dylan's amazing resilience and positivity saw him through months of surgery and chemotherapy, while his outstanding talent saw him make his first-team debut in a League Cup tie with Wigan Athletic at the Boleyn Ground in September 2012."