Argentina's manager is completely bald with his head shaved cleanly all around. And during the games, he gets so worked up, I've noticed, and people with me watching the games have also commented, he looks as if he's tearing his hair out, even though he doesn't have any. (Maybe that's why he doesn't have any hair anymore: he pulled it all out during games.)
So I thought a fun World Cup-themed TV spot for Rogaine could show the bald Argentina coach looking like he's pulling his hair out, and then we jump cut to him during another game, and we see him with a full head of hair, and he pulls at his hair out of excitement/stress, and the announcer says: "Don't worry: if you tear your hair out, we'll put it back."