Leon, Announcer and others in “Curtain up! Fight the Fights!”

Take your best shot! My Pokémon will defeat everyone standing in their way.

And now, we're going to reveal the matchups for the first round! [The screen display two square panels for the members. It spins like the ones on a slot machine.] For the first match, it's Leon vs Alain! [So much for Ash having the chance to refight Alain as to make up for the mess in the Kalos League...]

Alain and Leon, huh?

And for the second match, it's Lance vs Diantha! [Odd choice of pairing since the two never interacted before and Lance did not appear in the XY series. The screen spins revealing the third pair]

In the third match, it's Cynthia vs Iris. [That makes sense since Iris did receive mentorship from Cynthia in the Black and White series]

Iris

Me and Cynthia?

Go easy on me. [The screen spins again revealing the final pair]

For the fourth match, it's Steven Stone vs Ash Ketchum. [This is to make up for the lack of interaction between the two throughout the Ruby and Sapphire and the XY series]

So, I'm battling Steven Stone.

Pikachu

Pi-ka. [He is very tough.]

So, we finally get to battle each other.