CREATE TABLE table_72106 ("Season" TEXT, "Competition" TEXT, "Round" TEXT, "Opponents" TEXT, "1st leg" TEXT, "2nd leg" TEXT, "Aggregate" TEXT)

what's the 1st leg where opponents is galatasaray
SELECT "1st leg" FROM table_72106 WHERE "Opponents" = 'Galatasaray'
SELECT "1st leg" FROM "table_72106" WHERE "Opponents" = 'Galatasaray'