Points to look for:
- The player is pictured in mid-bounce, so his knees will bend a little as he comes back down to the ground.
- The player is using a robot to simulate a push drill, so he knows that the next ball is coming to his forehand side. This is why his racket angle is turned slightly to a forehand tilt. Against a live opponent in a match the racket edge would tend to be much more neutral - i.e. vertical.
- The free arm is already pointing a little to the player's right, since the player has already begun to prepare for his backswing.