How can I make this only work for 2 players instead of 1?

So I want this script to work ONLY more than 2 players - but if there are less than 2, nothing will happen so the server will check players every 5 seconds.

local function startRound()
    coroutine.wrap(function()
        for i = 10, 1, -1  do 
            blueTimer.Text = i
            if i == 1 then
                sign1.Color = Color3.new(0, 1, 0)
                blueTimer.Text = "ahe!!"
                Wall.Position = Vector3.new(-27, -41.952, -115.25)
                game.SoundService.StartRound:Play()
            end
            task.wait(1)
        end
    end)()

    coroutine.wrap(function()
        for i = 10, 1, -1 do 
            redTimer.Text = i
            if i == 1 then
                game.SoundService.StartRound:Play()
                sign2.Color = Color3.new(0, 1, 0)
                redTimer.Text = "wa"
            end
            task.wait(1)
        end
    end)()
end