article_snippet.sent: Per Mertesacker is not one to shy away from a verbal confrontation and the defender revealed that bringing back the 'arguing culture' to Arsenal was key to their upturn in results - following a number of heavy defeats.
article_snippet.sent: And Mertesacker, who last season was pictured remonstrating with Mezut Ozil, admits being embarrassed by the bigger teams was the catalyst for a number of much-needed confrontations.
article_snippet.sent: Per Mertesacker says Arsenal have brought back the 'arguing culture' after some heavy defeats last season .
article_snippet.sent: the defender gives Mezut Ozil a piece of Mezut Ozil mind following Arsenal's heavy defeat at the Etihad .
article_snippet.sent: The German thinks confrontation can be vital for a teams mentality and It has helped Arsenal since .
article_snippet.sent: Aaron Ramsey (left), Jack Wilshere and Nicklas Bendtner of Arsenal stand dejected after the fifth City goal . '
article_snippet.sent: It's really important, not only in general, but in a footballer's life.
highlights_snippet.sent: Per Mertesacker says that suffering embarrassing defeats hurt the squad .
  
highlights_snippet.sent: Losing heavily forced the players to bring back the 'arguing culture'
  Since then Arsenal have improved and could still finish second .
  