Chelsea and Arsenal played out a 0-0 draw in their Premier League match at Stamford Bridge on Sunday in a tense encounter that eventually finished with just 21 men on the pitch. Chelsea are third with 10 points. "It was an intense game", Wenger said.
"But we were focused and determined".
"We have responded well to losing on the opening day and got some strong results".
"I think we have to try to improve all the situations - physical, tactical and we will try to pay more attention in the future".
Wenger's side were savaged by former players and pundits after the 4-0 loss at Liverpool last month but showed far greater steel on Sunday and a point was the least they deserved.
Cesc Fabregas found Pedro with a looping cross as the Spaniard found himself one-on-one with Cech but he could not convert.
The Gunners had the better of the opening half and should have gone into the break ahead when Aaron Ramsey hit the post and Alexandre Lacazette somehow fired over from the close-range rebound.
As Chelsea's frustration mounted, David Luiz shrugged off Alexis Sanchez - on as a substitute and launched into a needless lunge on Kolasinac in the 87th minute.
That is likely to mean that Luiz will miss his side's next three league games which will include the visit of fellow title-contenders Manchester City. "You need to see what happened before the tackle".