Should I write each "team's", "teams" or "team" captain?

I'm writing about the captains of sport teams. Each team has one and only one captain. I'm confused on how to express this :

We will communicate this information to ...

• each team captain
• each team's captain
• each teams captain
• each teams' captain

It's my understanding that each is followed by a singular as per https://dictionary.cambridge.org/fr/grammaire/grammaire-britannique/each, so I think I should use captain against captains (I could be wrong on this one too, though)

However, I'm confused with the "team" part. There are several teams, so should I pluralize this word here ? Also, maybe should I use the possessive 's ?

Which is the correct way to complete the sentence ?

It should be each team’s captain, because each implies you’re talking about each of several teams individually, so you can use team’s as the singular possessive.