Abstract: A projector for projecting a tennis ball through the air. The projector has a housing containing a loading opening and two spaced recesses. A wheel with a roughened periphery is rotatably mounted in each recess. At least one of the wheels is motor-driven. The wheels are spaced from one another sufficiently that a tennis ball directed between them will be gripped and ejected from the housing toward a tennis player. The distance between the two wheels may be adjusted. A backstop is provided to stop a tennis ball driven by the tennis player. The backstop directs the stopped ball to the loading opening of the projector for reprojection to the player.