How to initialize an array in initializer without giving it any value?

Alright, so - this is my code:

struct Club {
    var name: String
    var country: String
    var squad: [Player]?
    var captain: Player?

    init(name: String, country: String) {
        self.name = name
        self.country = country
        self.captain = nil
        self.squad = nil
    }
}

struct League {
    var name: String
    var country: String
    var currentChampion: Club?
    var teams: [Club] = []

    init(name: String, country: String) {
        self.name = name
        self.country = country
        currentChampion = nil
        teams.append(Club(name: "A", country: "A"))
        teams.removeAll()
    }
}

There's also a structure "Player", but that's not important right now so I didn't include it. Everything important is in structure League. I have declared variable "teams" which is an array consisting of instances of struct Club. And now - I want to initialize it without giving it any (default) value as it wouldn't make any sense here. But so far, to do so, this is the only way I have found which works - that in init method I add a completely random club to the array teams and on the next line I remove it.

Isn't there a better way to do so? I really can't think of any.

PS: Above, in structure Club, you may see that I tried to use optionals and that worked till I actually tried to append an instance of club to the array when it simply said this array is still empty