Tide is a big World Cup sponsor, or so it seems from watching the games. And if they're going to sponsor the World Cup, why wouldn't they use Lionel Messi, and make a joke about him being messy? I can't believe they didn't do this!
So in this proposed ad, we'd see Lionel Messi get all covered in grass and mud stains playing soccer, and then we'd see him at home, and he'd drop a meatball in red sauce on his lap, and the announcer would say: "Messi can be messy, and it's no problem: The Tide is in, to take out the stains!" (And the new Tide slogan could be: "The Tide Is In", and we could see an animation of some dirty, stained article of clothing, and then a big wave would pass by, and it would remove the stain.)