CREATE TABLE table_69838 ("Outcome" CLOB, "Date" CLOB, "Surface" CLOB, "Partner" CLOB, "Opponents" CLOB, "Score" CLOB)

What are the dates where the opponent was guillermo garc a-l pez albert portas?
SELECT "Date" FROM table_69838 WHERE "Opponents" = 'guillermo garcía-lópez albert portas'
SELECT "Date" FROM "table_69838" WHERE "Opponents" = 'guillermo garcía-lópez albert portas'