Schnyder played in 59 Grand Slam tournaments, including 52 in a row from 1997-2009, and her best showing was making the semifinals at the 2004 Australian Open.
She also won 11 singles titles in her career, but had only three wins in 12 matches this season.
Schnyder, who was born in Basel, the same town as Roger Federer, compiled a 555-370 career record.
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