AUGUSTA - It's hard to imagine Ernie Els getting worked up about anything. <br>
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But the truth is, the South African has been tormented by his pursuit of Tiger Woods, allowing it to affect every aspect of his game. <br>
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Els jokes about the ``little guy'' on his shoulder, the demon who tells him to go for shots that have little chance of working, who keeps whispering ``Tiger, Tiger, Tiger'' in his ear. <br>
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Els is expected to be one Woods's main challengers at the Masters.
