Stefan O'Connor was grateful to Per Mertesacker for his leadership during a debut performance for Arsenal this week.
The 17-year-old made his first senior appearance at Turk Telekom Arena on Tuesday night, replacing Mathieu Debuchy in the closing stages of Arsenal's 4-1 win over Galatasaray.
"He encouraged me a lot," O'Connor told Arsenal Player. "When I made a mistake or if I did something well, he just encouraged me.
"He's a good leader and he's a good guy to have around the team.
"It's a dream come true. I would never have thought that at 17, I would be making my debut for the first team in the Champions League. Words can't explain it.
"This is what I play football for. I'm proud of myself. My confidence is sky high at the moment. I just have to push on from here. It's a great start and I can't complain."
