CREATE TABLE table_42722 ("Outcome" TEXT, "Date" TEXT, "Surface" TEXT, "Partner" TEXT, "Opponents" TEXT, "Score" TEXT)

What is the Opponents on a clay surface with christophe rochus as partner?
SELECT "Opponents" FROM table_42722 WHERE "Surface" = 'clay' AND "Partner" = 'christophe rochus'
SELECT "Opponents" FROM "table_42722" WHERE "Partner" = 'christophe rochus' AND "Surface" = 'clay'