real tennis
US /ˈriːəl ˈtenɪs/
UK /ˈriːəl ˈtenɪs/

1.
an indoor racket sport, the original form of tennis, played in a court with walls and a sloping roof, from which the ball can be played
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He is a master of real tennis, a sport with a rich history.
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Unlike modern tennis, real tennis courts have many unique features.