Tennis legend Andre Agassi revealed that he learned how to beat a rival by watching his tongue on serves
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Amazon.com: Boris Becker Tennis Player Poster (4) Posters Art Print Wall Photo Paint Poster Hanging Picture Family Bedroom Decor Gift 24x24inch(60x60cm): Posters & Prints
![Becker, Boris, * 22.11.1967, German tennis player, half length, during a game, serve, circa 1993 Stock Photo - Alamy Becker, Boris, * 22.11.1967, German tennis player, half length, during a game, serve, circa 1993 Stock Photo - Alamy](https://c8.alamy.com/comp/CR4EJY/becker-boris-22111967-german-tennis-player-half-length-during-a-game-CR4EJY.jpg)
Becker, Boris, * 22.11.1967, German tennis player, half length, during a game, serve, circa 1993 Stock Photo - Alamy
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