He was 13 when he was diagnosed with lymphoma in 2001, and Fazly Abdul Rahman still remembers what his first thoughts were at the time.
He wondered if he could still play hockey.
After 10 years of doctor's appointments, check-ups and worry, Fazly was declared cancer free.
Now, 13 years after he first heard about his disease, his love affair with hockey remains as strong as ever.
The former Raffles Institution (RI) student is coach of the school's C and B Division hockey teams.
Two weeks ago, the 26-year-old guided RI to their first B Division crown in 10 years when they beat Victoria School 4-1 on penalties in the final.
A full-time PE teacher at Dunman High, Fazly is delighted he is able to give back to his alma mater.
Speaking to The New Paper yesterday, Fazly said: "I felt I needed to give back to the school and to RI hockey. The school and the sport helped me get through cancer."
Recalling his battle against lymphoma, Fazly says the first year was the toughest, as chemotherapy often made him nauseous and weakened him physically.
During that period, he could only eat food prepared by his mother.
Forced to miss several days of school, he was given extra time to prepare for exams.
What hurt him the most, though, was missing hockey practice and matches.