CREATE TABLE table_63352 ("Season" FLOAT, "Team" TEXT, "League" TEXT, "Games" TEXT, "Total Tackles" TEXT, "Solo" TEXT, "TFL\\u00b9" TEXT, "Sacks" TEXT, "Int." TEXT)

what is the team when sacks is 0 and the season is earlier than 1998?
SELECT "Team" FROM table_63352 WHERE "Sacks" = '0' AND "Season" < '1998'
SELECT "Team" FROM "table_63352" WHERE "Sacks" = '0' AND "Season" < '1998'