The former Barca star launched an astonishing attack on Celtic 's ' ultra defensive ' strategy .
The former Barca star called on UEFA to beef up the qualification process for the League to make sure that the chaff is separated from the wheat .
The former Barca star launched an astonishing attack on Celtic 's ' ultra defensive ' strategy and called on UEFA to beef up the qualification process for the League to make sure that the chaff is separated from the wheat .