Fix to remove a nil player?

Right now, for my admin script, I know how to get the people who are nil, but how do I kick then since this won't work?

local S = game.NetworkServer

for _,v in pairs(S:GetChildren()) do
    local A = v:GetPlayer()
    if game.Players:findFirstChild(A.Name) then
        print(A.Name.." is here.")
    else
        print(A.Name.." is nil!")
        v:Destroy()
    end
end