CREATE TABLE table_68600 ("Outcome" TEXT, "Year" FLOAT, "Tournament" TEXT, "Partner" TEXT, "Opponent" TEXT, "Score" TEXT)

What tournament has an opponent jung jae-sung lee yong-dae?
SELECT "Tournament" FROM table_68600 WHERE "Opponent" = 'jung jae-sung lee yong-dae'
SELECT "Tournament" FROM "table_68600" WHERE "Opponent" = 'jung jae-sung lee yong-dae'