"We applaud the USTA's long-term commitment to increased and fair compensation for our athletes, " said Stacey Allaster, WTA chairman and CEO.

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"It's time for us to drive excessive grunting out of the game for future generations, " WTA CEO Stacey Allaster told USA Today.

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The ITF's stance was backed by Stacey Allaster, the chief executive of the WTA Tour and her male counterpart from the ATP Tour Brad Drewett.

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"We are excited by the growth of women's professional tennis, particularly in key markets like China and Brazil, " WTA chairwoman and CEO Stacey Allaster said in a statement highlighting the growing importance of the economies of Brazil, Russia, India and China (BRIC).

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