It's been a whirlwind 24 hours for the Scotland youth international, who revealed that he learned of his involvement in the matchday squad not long before the game.
He said: "I found out I was in the squad yesterday, after the session. I got told you will be with the first team, you'll be on the bench. I was buzzing with that.
"I was warming up in the last five minutes and five minutes got added on. I got the call and I was like, 'No way is this happening'. I got told to go and enjoy it and make as many passes as you can, get as many touches as you can, and that's what I did."
That is, indeed, what Fletcher did, completing all seven of the passes asked of him despite coming on with just three minutes to go, proving a calm presence in the middle of the pitch as Spurs attempted to find a late way back into the game.