What is the highest overall rank of any Tennessee State player drafted before round 10?
CREATE TABLE "nfl_draft" (
  "round" real,
  "overall" real,
  "player" text,
  "position" text,
  "school_club_team" text
);
SELECT MIN("overall") FROM "nfl_draft" WHERE "school_club_team"='tennessee state' AND "round"<10;