Football athletes may as well be animals, not that they realize it. They spend all their time out on a field, bent over, running end to end. All they do is eat to pack on weight, get heavier, more powerful. Some might even say they could graze.
The boost in testosterone along with the constant head trauma isn't good for their minds. Makes them dumber, angrier- not that they were meant to think much anyway. They just take orders, run the play, follow commands like pets. It's all that they're good at.
Their incessant training and reinforcement only makes them more docile and complacent. They can hardly think for themselves, acting on instinct. It's a surprise how they aren't walking around on all fours, tongue out, drooling with no self-awareness to their situation.
Oh, wait.