CREATE TABLE table_71689 ("Player" TEXT, "Wkts" FLOAT, "Runs" FLOAT, "Econ" FLOAT, "Ovrs" FLOAT)

Name the least ovrs for wkts of 0
SELECT MIN("Ovrs") FROM table_71689 WHERE "Wkts" = '0'
SELECT MIN("Ovrs") FROM "table_71689" WHERE "Wkts" = '0'