Many eyebrows were raised when Arsene Wenger swooped for the unheralded Charlton teenager two years ago.
Jenkinson has proved his worth, though, and was rewarded with an improved, long-term contract with the north Londoners last November.
That month the 21-year-old also made his senior England debut against Sweden, having been clearance to play for the Three Lions despite representing Finland at youth levels.
"It would be a dream for me to go to a World Cup and if I can play for Arsenal every week then I would give myself a chance," he told reporters. "But that's a big target for me.
"It's a big season for me. I look at it as a massive season. I've had a couple of years now where I've played, settled in and personally I've raised my level and get more chances.
"Hopefully I'll get more playing time than I did last year because that was a bit frustrating at times but I think this is an opportunity to show I'm ready.
"If I can play in some of these games then I think I can show that I can play week-in and week-out."
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- Arsene Wenger