CREATE TABLE table_42159 ("Team #1" TEXT, "Agg." TEXT, "Team #2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

Which 1st leg has a Team #1 of ummc ekaterinburg?
SELECT "1st leg" FROM table_42159 WHERE "Team #1" = 'ummc ekaterinburg'
SELECT "1st leg" FROM "table_42159" WHERE "Team #1" = 'ummc ekaterinburg'