CREATE TABLE table_68553 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

Which opponent has a Score of 6 4, 3 6, 6 3?
SELECT "Opponent" FROM table_68553 WHERE "Score" = '6–4, 3–6, 6–3'
SELECT "Opponent" FROM "table_68553" WHERE "Score" = '6–4, 3–6, 6–3'