“I did not see the red card correctly however David Luiz concept he was fouled previously,” Cahill stated at the incident.
Cahill was annoyed to just take some degree in opposition to the Gunners however believes the guests defended neatly at Stamford Bridge.
The Chelsea captain added: “It is maddening, a just right, aggressive London derby. There wasn’t a lot within the sport, performed in the correct way.
“We had numerous ownership within the first part and attempted to create nevertheless it felt irritating. They defended neatly, we could not open them up.
“We have answered neatly to shedding at the opening day and were given some sturdy effects. We take the purpose and we transfer on.”