The Australian forward was handed his first-team debut as a late substitute against Wigan Athletic, 15 months after being diagnosed with cancer.
"It was a definitely a big moment for me," said the Perth-born teenager to whufc.com. "I was obviously very happy. It's what every youngster wants - to make his debut for the first team. It was even better to do it at Upton Park in front of thousands of fans. I was really happy.
"It's now about getting another cap, but it's one step at a time and I was just happy with what happened on Tuesday night."