Conte concern at Blues' bad habits

Red cards help consign champion to shock defeat in league opener

LONDON - Chelsea manager Antonio Conte has accepted he may have to embed a new formation in his team if it continues to have players sent off.

After being reduced to 10 men in defeats to Arsenal in May's FA Cup final and this month's Community Shield, Chelsea ended the opening game of its Premier League defense with nine players as Gary Cahill and Cesc Fabregas were dismissed in a shock 3-2 loss to Burnley at Stamford Bridge on Saturday.