Andre Agassi noticed that Boris Becker's tongue gave away the direction in which he intended to serve [1]. "I started to realize he had this weird tick with hi

Andre Agassi noticed that Boris Becker's tongue gave away the direction in which he intended to serve [1]. "I started to realize he had this weird tick with his tongue," Agassi said. "I'm not kidding. He would go into his rocking motion, his same routine, and just as he was about to toss the ball, he would stick his tongue out. And it would either be right in the middle of his lip, or it'd be to the left corner of his lip. [1] https://www.insider.com/andre-agassi-beat-boris-becker-watching-tongue-serves-2021-4 https://www.insider.com/andre-agassi-beat-boris-becker-watch...