Who did Nabil Kassel face in the Round of 32?
CREATE TABLE "table1_17427004_7" (
  "athlete" text,
  "event" text,
  "round_of_32" text,
  "round_of_16" text,
  "quarterfinals" text,
  "semifinals" text
);
SELECT "round_of_32" FROM "table1_17427004_7" WHERE "athlete"='Nabil Kassel';