What’s the difference between watching the ball and seeing the ball?

The tennis players look at the ball, but really they’re surveying the entire court. this is watching it is really the surveying of the entire court. When the player Is watching everything that’s going on, the seeing of the ball is the actual Focus on the contact point or tracking of the ball to the contact point. this is the difference so we frame watching the entire screen when watching and just the ball when seeing.