CREATE TABLE "knockout_phase" (
  "date" text,
  "round" text,
  "opponents" text,
  "h_a" text,
  "result_f_a" text,
  "attendance" real
);

Question: What is the average Attendance for the final round?
SQL: SELECT AVG("attendance") FROM "knockout_phase" WHERE "round"='final';

Question: What is the smallest number of people to attend a game with an H/A of h and the opponent was Roma?
SQL: SELECT MIN("attendance") FROM "knockout_phase" WHERE "h_a"='h' AND "opponents"='roma';