The 21-year-old is in the frame to face Bayern Munich at the Allianz Arena on Wednesday in the second leg of the Gunners' last-16 clash, as his side look to try to overturn a 3-1 first-leg deficit after a difficult night at the Emirates Stadium two weeks ago.
Jenkinson, a boyhood Arsenal fan, has admitted that he has come to realise that the Champions League is the height of football, and is excited about getting the opportunity to appear in the tournament again.
"I've learned and realised that the Champions League is just the pinnacle of football," he told the club's official website.
"When I was growing up watching the Champions League, it's the competition you dream of playing in.
|8/1||Arsenal are 8/1 with BetVictor to beat Bayern Munich
"I love playing in it. I've been lucky enough to play a few games in it, and I've enjoyed every minute.
"I used to go to games when I was younger, and I'd be at school telling my mates I'm going to the Champions League tonight's. It's just a big buzz.
"There's such an aura about the Champions League. It's a fantastic tournament and I can't get enough of it."