Tombides had fought testicular cancer for three years.
A statement from the English Premier League he’s been with since he was 15 said: “[Dylan] remained a regular visitor to Chadwell Heath throughout his treatment and his positive attitude and professional approach to his football and training always impressed and boosted his team-mates and coaches alike.
“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.”
During his battle, Dylan worked tirelessly for cancer charities.
A minute’s silence will be observed before Saturday’s match between West Ham and Crystal Palace, while Hammers players will honour the Aussie with black armbands.
The club continued: “The thoughts of everyone associated with the Club are with his parents Tracylee and Jim, brother Taylor, his family and friends at this sad time.
“The Club request that their privacy is now respected and they are allowed to grieve their much loved son and brother in peace.”
Image via Getty