What sports are similar to tennis?
Racquet sports (squash, badminton), handball and volleyball all have major similarities to tennis.
Which of these sports are similar to each other when is comes to racquetball and sqash tennis and squash or badminton and racquetball?
It could be similar in the name because a lot of sports end in ball like basketball and football and baseball. It can relate because in basketball you play on a court and you play indoor volleyball on a court. It can relate to tennis because in both sports you serve. You also run in volleyball and in most other sports you run.
The major actions in the game resemble both the rules of tennis and the teamwork of basketball and soccer. The ball is similar to soccer, though using the hands as in basketball. The net is similar to badminton, or more widely to tennis, with which it shares beginning service from the rear line. It could be described as "handball soccer tennis badminton."