CREATE TABLE table_25673 ("Player" TEXT, "RR W-L" TEXT, "Sets W-L" TEXT, "Games W-L" TEXT, "Standings" FLOAT)

What are Ken Rosewall's sets w-l?
SELECT "Sets W-L" FROM table_25673 WHERE "Player" = 'Ken Rosewall'
SELECT "Sets W-L" FROM "table_25673" WHERE "Player" = 'Ken Rosewall'