_player vs player in "Team Stats" Exercise

Does _player equal player in this exercise?

I understand that we create a variable called player inside the array so we can push objects in to the array.
But i dont understand why , at the end of the exercise,
console.log(team._players);
and
console.log(team.players);

gives me the same result.

shouldnt team.players be undefined since we created that obj inside _players?