CREATE TABLE table_22874 ("Outcome" CLOB, "Year" FLOAT, "Championship" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponents" CLOB, "Score" CLOB)

Who did she play with on clay?
SELECT "Partner" FROM table_22874 WHERE "Surface" = 'Clay'
SELECT "Partner" FROM "table_22874" WHERE "Surface" = 'Clay'