3 different titles and 3 different title screens but they are all the same game!
One of the best tennis games for Genesis/Megadrive. You can even make your custom player.
Directly from the manual:
The world's top players have assembled to make this the ultimate in video tennis competition! Choose one of them to guide through the ranks to the championship, or make your own player! Sharpen your skills on the practice court, then enter the Grand Slam and show the rest why you're the best!