CREATE TABLE table_8156 ("Team 1" TEXT, "Agg." TEXT, "Team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

Which Team 2 had the 1st leg of 1 0?
SELECT "Team 2" FROM table_8156 WHERE "1st leg" = '1–0'
SELECT "Team 2" FROM "table_8156" WHERE "1st leg" = '1–0'