CREATE TABLE table_60777 ("Team 1" TEXT, "Agg." TEXT, "Team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What team 1 has a team 2 of universidad nacional?
SELECT "Team 1" FROM table_60777 WHERE "Team 2" = 'universidad nacional'
SELECT "Team 1" FROM "table_60777" WHERE "Team 2" = 'universidad nacional'