Gnabry told arsenal.com: "[Hector, Chuba and I] have come a long way. We started here when we were 16 - that was three years ago and I still remember the time when I walked into the other side of the building.
"It's all you've been dreaming about, you're just hoping for it to come one day and now it's finally arrived, for me it's excitement. Now you've just got to go out and show what you can do.
"We've all seen that Hector's shown what he's capable of at first-team level whereas a couple of months ago nobody would have spoken about him. I'm really happy for him, he's one of my closest friends and so is Chuba, so I'm very happy that the three of us have made that step together."
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