My script is having trouble choosing 2 random players?

This is the part in my dueling game where it chooses 2 random players to fight. The problem is, I'm getting the error "ServerScriptService.MainScript:28: attempt to get length of local 'v' (a userdata value)". Any help?

for _, v in pairs(game.Players:GetPlayers()) do
		if v then
			local dueler1 = v[math.random(1, #v)]
			repeat local dueler2 = v[math.random(1, #v)] until dueler2 ~= dueler1

			table.insert(_G.duelers, dueler1.Name)
			table.insert(_G.duelers, dueler2.Name)

			status.Value = "The 2 duelers are " .. dueler1.Name .. " and " .. dueler2.Name
			wait(3)

			status.Value = "Now teleporting players to the map"
			wait(3)
			
			local torso1 = dueler1.Character:WaitForChild("Torso")
			local torso2 = dueler2.Character:WaitForChild("Torso")
			
			torso1.CFrame = CFrame.new(spawn1.Positon + Vector3.new(0, 2, 0))
			torso2.CFrame = CFrame.new(spawn2.Positon + Vector3.new(0, 2, 0))
			
			local sword1 = sword:Clone()
			sword1.Parent = dueler1.Backpack
			
			local sword2 = sword:Clone()
			sword2.Parent = dueler2.Backpack
			
			dueler1.Character.Humanoid.WalkSpeed = 0
			dueler2.Character.Humanoid.WalkSpeed = 0
		end
	end