CREATE TABLE table_51193 ("Player" TEXT, "Position" TEXT, "First-Team Appearances" TEXT, "First-Team Goals" TEXT, "Current Club" TEXT)

Which position has had 7 first-team appearances?
SELECT "Position" FROM table_51193 WHERE "First-Team Appearances" = '7'
SELECT "Position" FROM "table_51193" WHERE "First-Team Appearances" = '7'