The dogs were great at getting the ball, but not so great at giving them back.
Plans to replace ball-boys and girls at Wimbledon with dogs have come crashing down because the animals wouldn't give the balls back.
Dogs were undergoing training at nearby Wilton Tennis Club in London.
The tests included speed, agility and high-jumping over the nets.
However it soon emerged the dogs were excellent at GETTING the ball, and dreadful at giving it back.