CREATE TABLE table_58812 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Date" TEXT)

What was the Tie no when Manchester United was the home team?
SELECT "Tie no" FROM table_58812 WHERE "Home team" = 'manchester united'
SELECT "Tie no" FROM "table_58812" WHERE "Home team" = 'manchester united'