CREATE TABLE table_10113 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Attendance" TEXT)

Which opponent has a Result of l 6 3?
SELECT "Opponent" FROM table_10113 WHERE "Result" = 'l 6–3'
SELECT "Opponent" FROM "table_10113" WHERE "Result" = 'l 6–3'