Nketiah only spent nine minutes on the pitch against Bayern Munich but he got plenty out of it: three shots, the winning goal and a man-of-the-match award.
"It's brilliant," he told Arsenal.com after the 2-1 win. "They're such a great team and it was a great experience to come on.
"I didn't come on for long, so I just wanted to make an impact and do well. Luckily I was in the right place at the right time. I'm grateful.
"I just made sure I was in a good position, a central position, and yeah it came to me and I made sure I put it away."