Tennis is a popular racket sport played by two (singles) or four players (doubles). Players use rackets to hit a felt-covered ball over a net, aiming to land it within the opponent's court where they are unable to return it. Originating in 19th-century England as "lawn tennis," it has evolved into a globally recognized sport with various formats and skill levels. Tennis offers physical and mental health benefits, promoting fitness, agility, and social interaction