A-Rod’s HBO documentary directed by a ‘massive Red Sox fan’

One way to know that the new Alex Rodriguez docuseries is objective is that is was directed by a huge Red Sox fan.

A source at the premiere of the new three-part HBO Max doc, “Alex vs. ARod,” told Page Six that the project’s co-director, Gotham Chopra “is a massive Red Sox fan, therefore he hates the Yankees and always hated A-Rod. But Alex trusted him with this doc.”

Rodriguez, 50, of course, played with the Bronx Bombers for 12 seasons.

Another guest said that Rodriguez won over the Boston-born director.

The film was created by Religion of Sports, co-founded by Chopra (the son of famed new age whiz Deepak Chopra), along with NFL greats turned broadcasters Tom Brady and Michael Strahan.

Brady and Strahan were among guests at the premiere, along with former Yankees pitcher CC Sabathia and his wife, Amber, plus the team’s announcers Michael Kay and Suzyn Waldman, A-Rod’s Minnesota Timberwolves business partner Marc Lore, Kevin Durant’s longtime agent Rich Kleiman, and Rodriguez’s entire family.

We hear that during a Q&A at the NYC screening, there was a humorous moment when the former third baseman was asked a “touchy feely” question, we hear, and he responded, “I am in this doc, but you should not be listening to me for mental health advice, please, please please.”

Said a spy, “It was very funny.”

The warts and all story — which debuts Nov. 6 and was co-directed by Erik LeDrew — is being called a raw and authentic look at the polarizing baseball legend.

We hear that HBO exec were “gushing that this one of the top docs they’ve ever created.”

“It’s a side of Alex we’ve never seen,” said a pal of the hard-hitting project.