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Correcting Errors: Forgetting to Change the Balls at the Western and Southern Open

Last week I promised that we had concluded coverage of the “Correcting Errors” section of the ITF Rules of Tennis as printed in the USTA Friend at Court. However, in the interim, I observed an umpire failing to change the balls during a match during the Western and Southern Open. This is the first time I have ever witnessed this kind of error in a match. It made me ridiculously happy.