i'm new at the forum but i've been playing this game for at least 2 years and it's very cool. It's a manager tennis game in where you can play with a player from your own country and compite in all of the cups around the world at the season (grand slam, etc) anda there's a davis cup and national cup for every country.
This is their presentention
Acemasters is a free online tennis manager game. You can train your players and participate in cups against other managers. Your target is to become the number 1 manager of the game. Maybe you will become the next acemaster?