Article: TENNIS PLAYERS SHOULD CHALLENGE 'OUT' CALLS.(Sports)

Byline: AP

The Associated Press

LOS ANGELES -- Two tennis players are locked in a furious baseline exchange. Eventually, a line judge calls the ball "out." Should the player who lost the point protest the ruling?

Yes, a new study suggests. Researchers say professional tennis players could increase their chances of having a ruling reversed in their favor by an instant replay review if they challenge "out" calls more than "in" calls.

A study of 57 randomly selected matches during the 2007 Wimbledon tournament found that officials were more likely to err by calling a shot "out" than "in." It's not a matter of bad refereeing, scientists say, but rather, it has to ...

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