Value it returns is correct, then it's nil?

So, I've got a big advanced minigame system. And I've only got 1 problem at the moment. (Pfew).

Let me first write down the script parts I'm going to be talking about.

local PlayerList = workspace.PlayerList

function GetWinningPlayer()
local PlayersInPlayerList = game.Workspace.PlayerList:GetChildren()
    for i,Player in pairs(PlayersInPlayerList) do
        print('Winning player = ',Player.Name)
        return Player.Name
    end

function TeleportPlayers(CurrentMap)
for i,player in pairs(Services.Players:GetChildren()) do
        wait()
        databaseUtils.updateXP(player, 10)
        player.Character.HumanoidRootPart.CFrame = CurrentMap.Spawns:GetChildren()[math.random(1,#CurrentMap.Spawns:GetChildren())].CFrame * CFrame.new(0,3,0)
        table.insert(InGame,player)
        player.PlayerData.InGame.Value = true
        player.Character.Head.Transparency = 1
        PlayersRemaining.Value = PlayersRemaining.Value + 1
        local SV = Instance.new('StringValue')
        SV.Parent = PlayerList
        SV.Name = player.Name
        SV.Value = PlayersRemaining.Value
        print('PlayersRemaining.Value = ',PlayersRemaining.Value)
        for i,part in pairs(player.Character:GetChildren()) do
            if part:IsA('Hat') then
                part:remove()
            end
        end
        pcall(function()
            player.Character.Head.face:remove()
        end)
    end
end

In the script below is where it goes wrong

if PlayersRemaining.Value == 1 then                            
        PickedWinner = GetWinningPlayer()
        print('PickedWinner = ',PickedWinner) -- Here it prints the name correctly.
        Winner = game.Players:FindFirstChild(PickedWinner.Name) -- Here i want to 'select' the player in Game.Players, so i can do additional things 
        print('Winner = ',Winner) -- And here it prints Nil

So, the functions all together is to pick the 'last man standing'. So the only player left in 'PlayerList' In the last function i call the function to pick the last standing player through "GetWinningPlayer()" The value it returns, is correct. It indeed selects the last man standing. But, once i want to find the Player in game.Players, it says Winner = nil.