Describe the scoring system in tennis

Each match consists of three sets. Each set consists of games. A player must win 6 games, but must win by two. The score must be six-four, six-three, six-two, six-one, or six-zero. If the score gets five-five, one of two things must happen. 1. One player must win two more games, so the score would be 7-5. 2. If the score goes six-six, a tiebreaker game is played.

either two or three