CREATE TABLE table_42676 ("Team 1" TEXT, "Agg." TEXT, "Team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What was the aggregate for the match with Sierra Leone as team 1?
SELECT "Agg." FROM table_42676 WHERE "Team 1" = 'sierra leone'
SELECT "Agg." FROM "table_42676" WHERE "Team 1" = 'sierra leone'