CREATE TABLE table_62913 ("Round" FLOAT, "Date" CLOB, "Home" CLOB, "Result" CLOB, "Visitor" CLOB, "Venue" CLOB, "Attendance" FLOAT)

Who is the visitor at the axa sports center in round 20?
SELECT "Visitor" FROM table_62913 WHERE "Venue" = 'axa sports center' AND "Round" = '20'
SELECT "Visitor" FROM "table_62913" WHERE "Round" = '20' AND "Venue" = 'axa sports center'