CREATE TABLE table_14551 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "NFL Recap" TEXT, "Record" TEXT, "Attendance" TEXT)

Which week's game had an attendance of 90,138?
SELECT "Week" FROM table_14551 WHERE "Attendance" = '90,138'
SELECT "Week" FROM "table_14551" WHERE "Attendance" = '90,138'