CREATE TABLE table_203_675 (id NUMBER, "match" NUMBER, "date" CLOB, "round" CLOB, "home/away" CLOB, "opponent team" CLOB, "score" CLOB, "scorers" CLOB)

who was the first team a.c milan played against in the uefa championship league ?
SELECT "opponent team" FROM table_203_675 ORDER BY "date" LIMIT 1
SELECT "opponent team" FROM "table_203_675" ORDER BY "date" FETCH FIRST 1 ROWS ONLY