(CNN) The French Open's decision to relocate the women's singles semifinals away from Roland Garros' main court has been labeled "unfair and inappropriate" by the Women's Tennis Association (WTA).

With no play possible on Wednesday due to rain , the semifinals were pushed to Friday -- the same day as the men's singles semifinals.

And with rain forecast for Friday as well, organizers have decided to move the semifinals away from the French Open's 15,000-capacity main court -- Court Philippe Chatrier -- to smaller courts.

Johanna Konta's meeting with Marketa Vondrousova will take place on Court Simonne Mathieu, while Ashleigh Barty and Amanda Anisimova will meet on Court Suzanne Lenglen.

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