CREATE TABLE table_26153 ("Edition" CLOB, "Round" CLOB, "Date" CLOB, "Against" CLOB, "Surface" CLOB, "Opponent" CLOB, "W/L" CLOB, "Result" CLOB)

Who was played against when there was a loss and in the gi po round?
SELECT "Against" FROM table_26153 WHERE "W/L" = 'Loss' AND "Round" = 'GI PO'
SELECT "Against" FROM "table_26153" WHERE "Round" = 'GI PO' AND "W/L" = 'Loss'