Shohei Ohtani sat behind a small table and waited.

Across the centre field plaza at Dodger Stadium, a horde of media listened for the signal. Once it came, the stampede was on. Reporters and photographers ran, ignoring security's commands to walk, in a beeline to reach Ohtani first.

Minus any screaming, it could have been the Beatles playing Dodger Stadium in 1966.

"That's what I do whenever he shows up in the clubhouse," Dodgers reliever Brent Honeywell joked.

Thursday's chaos was likely just the start as the Dodgers and New York Yankees prepared for Friday night's World Series opener.

"It just feels like it has finally arrived," Ohtani said through an interpreter.

He may well have been talking about himself.

"I have been watching the World Series every year and watching in the sense of disappointment because I couldn't play in one," Ohtani said, referring to his six losing seasons with the Los Angeles Angels before joining the Dodgers on a $US700 million ($A1.1 billion) contract last off-season.

"But this year, I'm able to participate in one and very much looking forward to it."

He appeared unruffled by the pushing and shoving and wall of cameras and microphones pointed at him. He rested his arms on the table, his fingers laced together, a slight smile on his boyish face.

"The guy never wavers," said Honeywell, wearing a T-shirt commemorating Ohtani's historic 50 home runs and 50 stolen bases in a season.

"He is as advertised."

Yankees bench coach Brad Ausmus managed Ohtani and the Angels in 2019. Ohtani played a shortened season that year since he was recovering from Tommy John surgery at the start and had knee surgery near the end.

"It wouldn't shock me if he went 60-60 and 20 wins a year from now," Ausmus said.

"This guy is the greatest baseball player ever and there's not a close second."

Ohtani has just three homers and no stolen bases this post-season after 54 homers and 59 steals during the regular season.

"He is like a unicorn," Yankees infielder Jazz Chisholm Jr. said.

"But we got one of our own."

That would be slugger Aaron Judge. He and Ohtani — baseball's top two home run hitters — traded compliments out of earshot of each other.

Told that Judge called him the best player in baseball, Ohtani replied, "I'm honoured that that's how he thinks of me. He's also one of the top players in this league."

Judge said, "He can attack you in so many different ways. He can hit for power, for average, it's a tough battle."

Yankees outfielder Juan Soto is most impressed by Ohtani's consistency.

"He doesn't take off and then come down," he said.

"He's been coming up all the way, little by little and makes his goals. He works every day and is focused on what he wants."

After nearly 20 minutes of entertaining English-language questions, Ohtani segued into ones in Japanese.

In any language, he has the same goal.

"The greatest moment that I'm hoping for is for us to be able to celebrate with a World Series win," he said.