I had never even heard of this lad before this fixture. Making your debut for any team is an ordeal but it's an entirely different matter when it's for Manchester United and away at Arsenal.
What made the occasion even more intense was the amount resting on the match for both teams. Well, what a performance by Axel Tuanzebe. The approach from the 19-year-old was just perfect. He did exactly what his senior professionals in the United line-up told him to do and played everything simple.
He never once over-complicated the game when in possession and although United lost, Tuanzebe took care of Alexis Sanchez as if he was playing a youth team game and looked a star in the making.
We've already seen Marcus Rashford and Jesse Lingard come through at United. Where are they getting these kids from? It's great to see a Premier League club bringing through home-grown talent. I was beginning to think we'd forgotten how.
Mourinho: 'The kid did an amazing job. And I think Alexis knows his name! Because the kid really played very well.'
"The kid was brilliant," Mourinho beamed. "I think first of all he's a good player, which is important, it doesn't matter the position he plays. I think globally he's a good player and he starts by being a good player, by being a good kid, a good professional, a good learner, a humble boy. So first of all he's a player and that's the most important thing."
"Every minute that he spends training with us is fantastic for him and every minute he plays in the Premier League is a bless. So at this moment I don't think the position matters."
"What matters is to get on the pitch, to get the experience, to play against Alexis Sanchez, to play against Ozil, to play against Welbeck, to play against big players."
"His best position by routine, by dynamic, which he brought playing with kids of his age, is central defender. I think playing with the big boys especially in this period of his career, I think right-back."
Given what Mourinho has said there then maybe he can fill in for Valencia from this season onwards gaining experience, he doesn't really seem to rate TFM I feel but Axel can get games hopefully.