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

You can use #game.Players:GetPlayers() to get the amount of players in a server.

I would suggest that you check the amount of players that are in the server and everything before you fire the startRound() function.