The tweener or between-the-legs shot is a difficult tennis shot where a player hits the ball between his or her legs. 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. Forward-facing tweeners, sometimes called “front tweeners”, are also occasionally employed. In competitive matches the tweener is a crowd-pleasing, seldom used last resort, but it is a common trick shot in exhibitions. .
The “Continental grip” is normally used to execute this shot.
Below is a Double TWEENER between Roger Federer and Grigor Dimitrov.