Maybe someone out there will correct me and go, “No! This is a brilliant way of enforcing proper forehand form in tennis!” And that person will be wrong. This guy working on his forehand with weighted cables is just…bad at everything.
Even if this were an intelligent way of training for tennis, I’m pretty sure that doing a plie during your forehand stroke isn’t going to quite get you that professional power you’re looking for. Though you do look like a pretty little princess. So..maybe half a victory?