Alan Smith names Mikel Arteta’s only ‘irreplaceable’ player at Arsenal

Ex-Arsenal striker Alan Smith (Picture: Getty)Alan Smith believes there is just one player Arsenal cannot afford to lose for an extended period of time as they chase a long-awaited Premier League title.The Gunners will look to maintain their four-point lead at the top of the Premier League on Sunday when they face north London rivals Tottenham.Mikel Arteta’s side have amassed 26 points from their first 11 league games of the season, losing just once and conceding only five goals.Arsenal h