"Doesn't work. The ball is now on the side rather than in front, and when I click E while dribbling, the ball doesn't disconnect like I asked."

Apologies for the confusion. Here's a revised version of the script. The ball will be positioned in front of the player and will disconnect when the E key is pressed again.

```lua
-- local script (StarterPlayerScripts) 
local UserInputService = game:GetService("UserInputService")
local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local soccerBall
local ballWeld

local function onKeyPress(input)
    if input.KeyCode == Enum.KeyCode.E then
        if soccerBall and soccerBall.Parent == workspace then
            if (character.HumanoidRootPart.Position - soccerBall.Position).Magnitude <= 5 then
                ballWeld = Instance.new("WeldConstraint")
                ballWeld.Parent = soccerBall
                ballWeld.Part0 = soccerBall
                ballWeld.Part1 = character.HumanoidRootPart
                ballWeld.Enabled = true
                soccerBall.CFrame = character.HumanoidRootPart.CFrame * CFrame.new(0, 0, 2)
            end
        elseif ballWeld and ballWeld.Parent then
            ballWeld:Remove()
            ballWeld = nil
        end
    end
end

local function onCharacterAdded(char)
    character = char
    humanoid = character:WaitForChild("Humanoid")
end

player.CharacterAdded:Connect(onCharacterAdded)

soccerBall = workspace:WaitForChild("SoccerBall")

UserInputService.InputBegan:Connect(onKeyPress)
```

```lua
-- server script (ServerScriptService) 
while task.wait() do
    for _, player in ipairs(game.Players:GetPlayers()) do
        local character = player.Character
        if character then
            local humanoidRootPart = character:FindFirstChild("HumanoidRootPart")
            if humanoidRootPart then
                local soccerBall = workspace:FindFirstChild("SoccerBall")
                if soccerBall then
                    local ballWeld = soccerBall:FindFirstChildWhichIsA("WeldConstraint")
                    if ballWeld and ballWeld.Part1 == humanoidRootPart then
                        soccerBall.CFrame = humanoidRootPart.CFrame * CFrame.new(0, 0, 2)
                    end
                end
            end
        end
    end
end
```

This script should work as expected now. The ball will be positioned 2 studs in front of the player when the E key is pressed and the player is within 5 studs of the ball. Pressing the E key again will disconnect the ball.