Chelsea boss Rosenior warns players over discipline
Sunday's 2-1 loss to Premier League leaders Arsenal at the Emirates Stadium means Chelsea have won just two of their past six matches in all competitions.
They are sixth in the Premier League table ahead of Wednesday's match at fourth-placed Aston Villa, three points behind Liverpool in the battle for Champions League football next season.
Ill-discipline has been costly for Chelsea this season, with Neto the seventh Stamford Bridge player to be shown a red card in the Premier League.
Chelsea boss Rosenior...