The 23-year-old was forced to watch on from the stands as Wenger’s side ended a nine year trophy drought in thrilling fashion against Hull at Wembley, overturning an early two-goal deficit to win 3-2 in extra time.
As has all too often been the case for Oxlade-Chamberlain it was an injury that effectively ended his hopes of a spot in the Wembley lineup. After an impressive run of form that season a groin injury ruled him out until late May and cost him his chance to make his first FA Cup Final appearance.
“I played pretty much all the games [that season],” he told Dugout. “Then I got a little injury before the end of the season which kept me out for three weeks.
“I came back with a week to go, I trained that week but then the boss put the squad up for the final and I wasn’t in it.
“To say I was devastated was an understatement. I remember going to him and saying ‘I need to be in this squad’. I just kept saying it.
“In the end he decided to take me but as the 19th man. So I still had a bit of hope that I would make the bench.”
Oxlade-Chamberlain, who is expected to feature in Sunday’s FA Cup semi-final against Manchester City, would ultimately remain out of the squad for what was to be one of the most significant games of Wenger’s 20 year reign.
Santi Cazorla and Aaron Ramsey inspired Arsenal to a victory that had seemed beyond them after eight minutes, by which time defenders James Chester and Curtis Davies had headed Hull into a 2-0 lead.
“The day of the game came and he still didn’t put me on the bench so I was really devastated,” Oxlade-Chamberlain added.
“But once the game started and the way it went, being 2-0 down, and then the way we were coming back - my own disappointment went out the window.
“It was just about the team and the club doing well.
“I was just as ecstatic as anyone at the end. I think I actually ran on the pitch at the end and jumped on the boss and gave him a hug which is quite funny looking back.”