How can i join a table with the find method ? ex: Team::find()
You can't you need to use modelsManager or Team::query()
You've got the option of using the EagerLoading extension from Phalcon incubator to accomplish this.
https://github.com/phalcon/incubator/tree/master/Library/Phalcon/Mvc/Model
Eage loading is worst possible solution.