You hit a short ball and your opponent charges in to get it; sticks out his racquet and the ball comes wobbling over the net to your side. You claim “double bounce”; but he says “No, I got there.” What do you do?
First the rule: it is your opponent’s call (in singles or doubles); so you have to rely on his senses – or sense of honesty.
But as my tennis friend Spike Gonzales noted to me in that situation: if the ball lands on your side with TOP SPIN (and takes a slight bounce forward as it lands) it had to be either a double bounce or hit into ground by your opponent.
The situation also just happened at the blue-clay Madrid Open against Roger Federer. Tomas Berdych seemingly got to the ball (and the referee said he did); but Fed cited the topspin on the ball (to no avail).
So, watch carefully when your opponent is hitting AND when the ball lands.