What tour did both Mary Pierce and Meredith McGrath play in?
Mary Pierce: Mary Pierce (born 15 January 1975) is a French retired tennis professional who played on the Women's Tennis Association (WTA) tour. Meredith McGrath: Meredith McGrath (born April 28, 1971) is a former professional tennis player. Meredith McGrath:  She was born in Midland, Michigan, USA and made her debut on the Women's Tennis Association tour in 1988.
Women's Tennis Association tour