Vernon
Ah, the stadium! The go-to place for battling and such events! But... A bit empty as of late, so a trainer from a wayward region decided to occupy the area for the day, training up with his Pokemon. Most notable of these is his partner Infernape, who he was, oddly enough, sparring with. Of course, it was more hand-to-hand combat rather than an outright unfair matchup.

The odd man seemed to adapt to Infernape's unique style of fighting, while not as agile or prehensile, he kept up. After a few moments, they'd decide to take a quick break, sitting down and enjoying some berries.

The day was slow, not much to do. Zoro planned to organize an event!...Of course, he needed to get in touch with the island's owner to make it all official, but just thinking about it got him pumped! An all out tourney of Champion v Champion! If the strongest of the strong were on the island, may as well appreciate the opportunity! But first? A fair bit of training for him. If only someone showed up for a practice battle.
Charlotte
Cinder would be at the stadium as well, the stadium was her second home, the roaring of crowds, the heat of battle. It was something that she always enjoyed as her own team would be ready, or rather Ryoko and her, throwing down in the arena as Cinder would be lifting weights with Ryoko. Cinder would be lifting 50 pound dumbells while her Charizard was lifting a truck up and down as part of her training. 

She was her own champion, three time champion of the Pokemon World Tournament in Unova. She was ready for a hypothetical event but perhaps a battle might get her motor running beforehand. The blond superstar was wearing gym shorts and a tank top, with a towel on her shoulders and gym shoes with a red headband. She was totally ready for a practice battle if Zoro was willing.
Vernon
Looking at Zoro, you wouldn't think he was a champion, let alone someone with reasonable income. More of a homeless man, he seemed, more loose clothing, but his signature black headband to contrast his wild red hair and to hide his scarred self in shadow. His Infernape, Meteor would poke the wayward champion to take better notice towards Cinder and Ryoko. The man would look towards the gal and her Charizard, soon with a hearty chuckle before waving.

"Oye, amiga! Any chance you'd care for a battle!? It's been a while since I had a proper match!"
He'd speak out. He figured calling others friend would make for a better first impression. Meteor would go ahead and climb onto Zoro's back, poking his head out to look towards the superstar and flying lizard. Immediately, the monkey figured them as a bit of show-offs, but still, was curious.
Charlotte
Cinder wasn't one to judge based on appearances, despite her upper class nature and her celebrity status. So she instead looked back at the champion after hearing his words as her Charizard roared in pride to show off in response to Meteor's own poking around. 

Oh she was indeed ready for a battle, someone worthy, someone that she could struggle for a victory. She had easily crushed another Charizard with no effort and destroyed the team of another trainer. The fire in the Infernape's eyes, it's something that she desired to face. Cinder stopped her lifting and smiled, "So I presume it's gonna be a one Vs one? Fire starter against fire starter? Sinnoh Vs Kanto? Or are we doing a full team fight?" Cinder asked Zoro, intrigued.
Vernon
"Hm... A Double Battle. Haven't done one of those in a minute! Of course full teams, for the sake of fairness amiga!"
Zoro spoke with a grin, then looked to Meteor, a gaze to the Flame monkey's single eye, before the both of them nodded, and he'd return the Infernape to his Pokeball.

"I expect you won't be holding anything back, no? Then I may as well go all out as well."
Despite the man's general... Overall, intimidating and near-villainous appearance, he seemed rather upbeat and jovial. He'd soon make his way over to one end of the stadium, getting into position while waiting for Cinder to get into position as well, to more properly seem like an official battle, despite there not being any spectators as far as he knew.
"But fair warning amiga! I pull from all over, a tad bit." He said. He sounded confident, but of course, he was cautious. Sure, a pretty face usually meant a celebrity, but there may be also power behind the beauty. So he readied himself.
Douglas
Cinder: The woman nodded as she walked to her end of the stadium. She pictured a crowd chanting her name and the competitor as well but alas they weren't here. Still she was more than ready to duel. "Ryoko stay by my side." Cinder exclaimed as she got into a fighting stance with her Charizard. "My name is Pokémon World Tournament Champion Cinder Zhou! I accept your challenge!"