Grunts can become a player's signature, like a two-handed backhand or a sartorial flourish.

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Djokovic's two-handed backhand is among the best shots in tennis, and it's the perfect counter-weight to Nadal's forehand.

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The South African converted confidently with a firm double-handed backhand down the line.

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Evert was a righty with a baseline game anchored by her two-handed backhand.

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Davy pulls out a double-handed backhand and gives Nadal no chance.

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It's a rivalry defined by strength (Nadal's left-handed forehand) versus relative weakness (Federer's one-handed backhand), and Federer knows there's little point in hanging back and rallying with Nadal for hours.

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At times, "The Outsider" reads both like a memoir and a riposte, a sharp two-handed backhand down the line from a champ who freely cops to selfishness, stubbornness and shortcomings as a husband.

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One of the problems Federer has on clay is that he has a single-handed backhand, and Nadal can get so much spin -- so Federer is trying to hit single-handed shots up around his shoulder.

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And at 3-2 down in the second set, the Spaniard found himself 0-40 on serve and a wide backhand handed the break to his opponent.

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