Tweener (tennis)

It is typically performed facing away from the opponent, when the player attempts to recover a lob and has no time to turn back around, and hits the ball backward between their legs.

Players who famously executed the backward shot include the pioneer Guillermo Vilas (whose version was called the "Gran Willy"), Yannick Noah, Ilie Năstase, Gabriela Sabatini (whose version became known as "the Sabatweenie"), Juan Carlos Ferrero, Roger Federer, Rafael Nadal, Juan Martín del Potro, Nick Kyrgios, Daria Kasatkina, Agnieszka Radwańska, Simona Halep, Ons Jabeur, and Novak Djokovic.

Vilas was inspired by an advertisement where Juan Carlos Harriot, a famous polo player during the '70s, hit a backwards shot between his horse's hind legs.

[7] He debuted his version in a 1974 exhibition match at the courts of Club Obras Sanitarias in Buenos Aires against the French player Wanaro N'Godrella.

[9][10] Hubert Hurkacz, who defeated Federer in the quarterfinals of the 2021 Wimbledon tournament, has had his tweener described as "one of the flashiest on tour" by Christopher Clarey of The New York Times.