Arsenal boss Arsene Wenger hails Frenchman 's one -goal hero Arsene Wenger . Frenchman compares Messi forward to a computer game machine . Barcelona coach says Barcelona 's greatest quality is his humble character . Spanish champions move into semifinals of Europe 's top club competition .
Arsenal boss Arsene Wenger hails Barcelona 's four-goal hero Lionel Messi . Frenchman compares Argentina forward to a computer game machine . Barcelona coach says Messi 's greatest quality is his humble character . Spanish champions move into semifinals of Europe 's top club competition .