ONS is a site-specific intervention in the former Hotel Magara in Gammarth, a northern suburb of Tunis. The tennis court embedded in a swimming pool creates an unbalanced field in which one player plays upwards while the opponent has an advantage and can play downwards. The work is a tribute to Tunisian tennis player Ons Jabeur and recalls the early years of her career when she was still a child training on the tennis courts in hotels and holiday clubs in Tunisia.