What is the round of 32 if the round of 16 is drenovak ( srb ) w 20–11?
CREATE TABLE "table1_27294107_11" (
  "athlete" text,
  "event" text,
  "round_of_32" text,
  "round_of_16" text,
  "quarterfinals" text,
  "semifinals" text
);
SELECT "round_of_32" FROM "table1_27294107_11" WHERE "round_of_16"='Drenovak ( SRB ) W 20–11';