On Friday night Roger Federer defeated Taylor Fritz to reach the fourth round of the Australian Open.

But we aren’t here to discuss that.

We need to talk about his four-year-old son Lenny, who made a rare appearance in his dad’s box yesterday afternoon.

And who, by all means,completelystole the show.

You see, tennis does not make sense to young Lenny.

Lenny, whose full name is Lennart, is one Federer’s two sets of twins. His brother, Leo, was either not in attendance, or impeccably well behaved.

He was perhaps told by his mum that if he was on his best behaviour he might get an ice cream, so he came along to watch his dad.

But then he decided that he didn’t quite understand why everyone was sitting so still and being so quiet.

So he decided he didn’t want an ice cream anyway, and began… poking people.

Like this guy. Who precisely no one knows.

What does your face feel like sir?

What r u doing

Who is this kid anyway

He is... every child at an adult eventever.

Mirka Federer is sick of it so she's ignoring her son. As we all would if our husband was ranked third in the world.

Lenny doesn't understand why everyone is so serious and nobody is playing with him.

It just does not make sense, and to be completely honest, we understand.

The people of Twitter are now completely obsessed with Lenny.

Omg Federer’s son is here what a little cutie

— federer updates (@gradicalz) January 18, 2019

Watching @rogerfederer ‘s son try to pop coach @theljubicic ‘s cheeks during the change of ends is the cutest thing I’ve seen today! Just shows how relaxed and at ease the Federer camp are during a match. @AustralianOpen #AusOpen #Rogerfederer pic.twitter.com/5CBv8iUYpg

— Hugo McWilliam (@HugoMcWilliam) January 18, 2019

Its the year 2032 Roger Federer is facing 18 year old Lenny Federer in the AO 3rd round. Roger is sparing his son no mercy as he SABRs him. Mirka's cardigan game is strong as she chews gum and looks down not even interested in her kids fighting it out

— Dr Aditi (@adi_singh18) January 18, 2019

To put this in terms tennis people might understand, we LOVE ALL of this.