CREATE TABLE table_70163 ("Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Loss" TEXT, "Crowd" TEXT, "Record" TEXT)

Loss of wilcox, and a Date of jun 18 had what opponent?
SELECT "Opponent" FROM table_70163 WHERE "Loss" = 'wilcox' AND "Date" = 'jun 18'
SELECT "Opponent" FROM "table_70163" WHERE "Date" = 'jun 18' AND "Loss" = 'wilcox'