CREATE TABLE table_43835 ("Date" CLOB, "Opponent" CLOB, "Site" CLOB, "Result" CLOB, "Attendance" CLOB)

Who was the opponent when they played at the legion field birmingham, al site?
SELECT "Opponent" FROM table_43835 WHERE "Site" = 'legion field • birmingham, al'
SELECT "Opponent" FROM "table_43835" WHERE "Site" = 'legion field • birmingham, al'